abeabc71bb* feat: add custom model v1/model loading * fix: require base URL for local model catalog loading --------- Co-authored-by: Roland Tannous <115670425+rolandtannous@users.noreply.github.com>
347 lines
14 KiB
Python
347 lines
14 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-only
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# Copyright 2026-present the Unsloth AI Inc. team. All rights reserved. See /studio/LICENSE.AGPL-3.0
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"""
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Static registry of supported external LLM providers.
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All providers expose OpenAI-compatible /v1/chat/completions endpoints
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with Bearer token authentication and SSE streaming support.
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"""
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import re
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from typing import Any
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PROVIDER_REGISTRY: dict[str, dict[str, Any]] = {
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"openai": {
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"display_name": "OpenAI",
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"base_url": "https://api.openai.com/v1",
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"default_models": [
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"gpt-5.5",
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"gpt-5.4",
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"gpt-5.4-mini",
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"o3",
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],
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"supports_streaming": True,
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"supports_vision": True,
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"supports_tool_calling": True,
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"auth_header": "Authorization",
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"auth_prefix": "Bearer ",
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# Keep the model picker scoped to the current generation. The remote
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# /v1/models listing returns dozens of historical snapshots, fine-tunes
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# and non-chat models (embeddings, TTS, image, moderation) that we
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# never want to surface in the chat UI. Filtering here so backend
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# is the single source of truth.
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"model_id_allowlist": re.compile(r"^(gpt-5\.[345]|gpt-4\.5|o3)(?:[-.]|$)"),
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# Hide dated snapshots and the retired plain gpt-5.3 id.
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"model_id_denylist": re.compile(r"^(gpt-5\.3)$|-\d{4}-\d{2}-\d{2}$"),
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},
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"anthropic": {
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"display_name": "Anthropic",
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"base_url": "https://api.anthropic.com/v1",
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"default_models": [
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"claude-opus-4-7",
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"claude-opus-4-6",
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"claude-sonnet-4-6",
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"claude-opus-4-5",
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"claude-sonnet-4-5",
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"claude-haiku-4-5",
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],
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# Anthropic /v1/models returns dated snapshot ids alongside the
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# canonical names (e.g. claude-3-5-sonnet-20241022). Hide the
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# YYYYMMDD-suffixed variants from the picker — same intent as the
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# OpenAI denylist, just a different date format (no dashes between
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# year/month/day).
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"model_id_denylist": re.compile(r"-\d{8}$"),
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"supports_streaming": True,
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"supports_vision": True,
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"supports_tool_calling": False,
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"auth_header": "x-api-key",
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"auth_prefix": "",
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"extra_headers": {
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"anthropic-version": "2023-06-01",
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},
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"openai_compatible": False,
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"notes": "Native Anthropic Messages API. Uses x-api-key header and /v1/messages endpoint with SSE translation.",
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},
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"gemini": {
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"display_name": "Google Gemini",
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"base_url": "https://generativelanguage.googleapis.com/v1beta/openai",
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# Curated lineup — Google's /v1beta/openai/models returns dozens
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# of historical / experimental / embedding ids. Cap to the current
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# 3.x family plus the rolling `*-latest` aliases.
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"default_models": [
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"gemini-3.1-pro-preview",
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"gemini-3.1-flash-lite",
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"gemini-3-flash-preview",
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"gemini-pro-latest",
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"gemini-flash-latest",
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"gemini-flash-lite-latest",
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],
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"supports_streaming": True,
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"supports_vision": True,
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"supports_tool_calling": True,
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"auth_header": "Authorization",
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"auth_prefix": "Bearer ",
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"notes": "OpenAI-compatible endpoint. API key from https://aistudio.google.com/apikey.",
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"model_id_allowlist": re.compile(
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r"^(gemini-3\.1-flash-lite|gemini-3-flash-preview|"
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r"gemini-3\.1-pro-preview|gemini-pro-latest|"
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r"gemini-flash-latest|gemini-flash-lite-latest)$"
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),
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},
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"deepseek": {
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"display_name": "DeepSeek",
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"base_url": "https://api.deepseek.com/v1",
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"default_models": [
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"deepseek-chat",
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"deepseek-reasoner",
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],
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"supports_streaming": True,
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"supports_vision": False,
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"supports_tool_calling": True,
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"auth_header": "Authorization",
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"auth_prefix": "Bearer ",
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"notes": "OpenAI-compatible API. deepseek-chat = V3, deepseek-reasoner = R1 thinking mode.",
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},
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"mistral": {
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"display_name": "Mistral AI",
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"base_url": "https://api.mistral.ai/v1",
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"default_models": [
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"codestral-latest",
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"devstral-latest",
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"devstral-medium-latest",
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"magistral-medium-latest",
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"ministral-14b-latest",
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"ministral-3b-latest",
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"ministral-8b-latest",
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"mistral-large-latest",
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"mistral-medium-latest",
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"mistral-small-latest",
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"mistral-tiny-latest",
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"mistral-vibe-cli-latest",
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],
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"supports_streaming": True,
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"supports_vision": True,
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"supports_tool_calling": True,
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"auth_header": "Authorization",
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"auth_prefix": "Bearer ",
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"model_id_allowlist": re.compile(
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r"^(codestral-latest|devstral-latest|devstral-medium-latest|"
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r"magistral-medium-latest|ministral-(?:14b|3b|8b)-latest|"
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r"mistral-(?:large|medium|small|tiny)-latest|"
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r"mistral-vibe-cli-latest)$"
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),
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},
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"kimi": {
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"display_name": "Kimi",
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"base_url": "https://api.moonshot.ai/v1",
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# Current Kimi model lineup per the official docs:
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# https://platform.kimi.ai/docs/models
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# Listing/overview endpoints used to enumerate them:
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# https://platform.kimi.ai/docs/api/list-models
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# https://platform.kimi.ai/docs/api/overview
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# kimi-k2.6 and kimi-k2.5 are the two SoTA multimodal models we
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# surface in the picker; everything else (moonshot-v1-*, dated
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# k2 previews) is filtered out by model_id_allowlist below.
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"default_models": [
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"kimi-k2.6",
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"kimi-k2.5",
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],
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"supports_streaming": True,
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"supports_vision": True,
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"supports_tool_calling": True,
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"auth_header": "Authorization",
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"auth_prefix": "Bearer ",
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"notes": "Moonshot API key. China: use base URL https://api.moonshot.cn/v1",
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"model_id_allowlist": re.compile(r"^kimi-k2\.[56]$"),
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# Both k2.6 and k2.5 are reasoning-class. The API rejects custom
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# sampling: "invalid temperature: only 1 is allowed for this model"
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# (and the same shape for top_p). Strip both fields from the
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# outbound body so the server falls back to its required defaults.
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"body_omit": ("temperature", "top_p"),
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},
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"qwen": {
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"display_name": "Qwen",
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"base_url": "https://dashscope-intl.aliyuncs.com/compatible-mode/v1",
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"default_models": [
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"qwen-plus",
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"qwen-turbo",
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"qwen-max",
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"qwen2.5-72b-instruct",
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],
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"supports_streaming": True,
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"supports_vision": True,
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"supports_tool_calling": True,
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"auth_header": "Authorization",
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"auth_prefix": "Bearer ",
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"notes": "DashScope API key. China mainland: override base URL to https://dashscope.aliyuncs.com/compatible-mode/v1",
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},
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"huggingface": {
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"display_name": "Hugging Face",
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"base_url": "https://router.huggingface.co/v1",
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# Seed the picker with a few popular ids so something is selectable
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# before the live /v1/models call resolves. The remote listing is
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# the source of truth — see model_list_mode below.
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"default_models": [
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"openai/gpt-oss-120b",
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"deepseek-ai/DeepSeek-V3",
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"meta-llama/Llama-3.3-70B-Instruct",
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"Qwen/Qwen2.5-72B-Instruct",
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],
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"supports_streaming": True,
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"supports_vision": True,
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"supports_tool_calling": True,
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"auth_header": "Authorization",
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"auth_prefix": "Bearer ",
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"notes": (
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"HF token from huggingface.co/settings/tokens. Uses the "
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"OpenAI-compatible router at /v1/chat/completions; /v1/models "
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"returns the cross-provider chat catalog. See "
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"https://huggingface.co/docs/inference-providers/index."
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),
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# /v1/models works on the HF router and returns the full chat-model
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# catalog (state.org/model[:policy] ids). Switch to remote so users
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# see live availability — the picker has a search box, and
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# loadModels() merges defaults so default_models entries remain
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# visible if the remote call fails.
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"model_list_mode": "remote",
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# Scope the catalog to first-party org repos we trust as primary
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# sources. The HF /v1/models response is otherwise hundreds of
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# ids long (community fine-tunes, mirrors, fp8 variants, etc.).
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"model_id_allowlist": re.compile(
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r"^(openai|deepseek-ai|google|meta-llama|Qwen|moonshotai|"
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r"mistralai|zai-org)/"
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),
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# Cap the post-filter list. /v1/models has no server-side limit
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# or popularity sort, so this is just "first N matches" — pair it
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# with the default_models seed so the most useful flagship ids
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# are always among the top regardless of the API's order.
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"model_id_limit": 15,
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},
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"vllm": {
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"display_name": "vLLM",
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# User-supplied via provider_base_url; the route layer already falls
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# back to the payload's base_url when the registry entry has none.
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"base_url": "",
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"default_models": [],
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"supports_streaming": True,
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"supports_vision": True,
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"supports_tool_calling": True,
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"auth_header": "Authorization",
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"auth_prefix": "Bearer ",
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# Force /v1/chat/completions in stream_chat_completion — vLLM's
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# /v1/responses rebuilds messages and runs them through the loaded
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# model's chat template, which 400s on strict-alternation templates
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# (Gemma 3 raises "Conversation roles must alternate user/assistant
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# /user/assistant/..."). The chat-completions path takes messages
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# verbatim and avoids that template gauntlet.
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"notes": "Self-hosted vLLM server. Always routed to /v1/chat/completions.",
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# Surfaced through the frontend's CUSTOM_PROVIDER_PRESETS, not the
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# /api/providers/registry dropdown — see list_available_providers.
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"hidden": True,
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},
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"ollama": {
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"display_name": "Ollama",
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"base_url": "http://localhost:11434/v1",
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"default_models": [],
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"supports_streaming": True,
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"supports_vision": True,
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"supports_tool_calling": True,
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"auth_header": "Authorization",
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"auth_prefix": "Bearer ",
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"notes": (
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"Local Ollama server. OpenAI-compatible /v1/chat/completions; "
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"no API key. Surfaced via CUSTOM_PROVIDER_PRESETS in the frontend."
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),
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"hidden": True,
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},
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"llama_cpp": {
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"display_name": "llama.cpp",
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"base_url": "http://localhost:8080/v1",
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"default_models": [],
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"supports_streaming": True,
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"supports_vision": True,
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"supports_tool_calling": True,
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"auth_header": "Authorization",
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"auth_prefix": "Bearer ",
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"notes": (
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"Local llama.cpp server (llama-server). OpenAI-compatible "
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"/v1/chat/completions. Surfaced via CUSTOM_PROVIDER_PRESETS."
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),
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"hidden": True,
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},
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"openrouter": {
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"display_name": "OpenRouter",
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"base_url": "https://openrouter.ai/api/v1",
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# Curated list for Studio's picker (explicitly locked, not live /models).
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"default_models": [
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"openrouter/free",
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"openai/gpt-4o",
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"anthropic/claude-sonnet-4-5",
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"google/gemini-2.5-flash",
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"mistralai/mistral-large-2411",
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"deepseek/deepseek-r1",
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"mistralai/mistral-small-3.1-24b-instruct",
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"perceptron/perceptron-mk1",
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"inclusionai/ring-2.6-1t:free",
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"google/gemini-3.1-flash-lite",
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"baidu/cobuddy:free",
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"openai/gpt-chat-latest",
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"x-ai/grok-4.3",
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"ibm-granite/granite-4.1-8b",
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"openrouter/owl-alpha",
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"poolside/laguna-xs.2:free",
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"~google/gemini-pro-latest",
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"~moonshotai/kimi-latest",
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],
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"supports_streaming": True,
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"supports_vision": True,
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"supports_tool_calling": True,
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"auth_header": "Authorization",
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"auth_prefix": "Bearer ",
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"extra_headers": {
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"HTTP-Referer": "https://unsloth.ai",
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"X-Title": "Unsloth Studio",
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},
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"notes": "Unified gateway to 300+ models across all major providers. HTTP-Referer and X-Title headers sent for attribution.",
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"model_list_mode": "curated",
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},
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}
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def get_provider_info(provider_type: str) -> dict[str, Any] | None:
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"""Return the registry entry for a provider type, or None if unknown."""
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return PROVIDER_REGISTRY.get(provider_type)
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def get_base_url(provider_type: str) -> str | None:
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"""Return the default base URL for a provider type."""
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info = PROVIDER_REGISTRY.get(provider_type)
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return info["base_url"] if info else None
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def list_available_providers() -> list[dict[str, Any]]:
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"""Return all registered providers (for the /registry endpoint).
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Hidden entries (``"hidden": True``) are filtered out — they exist in the
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registry only for backend lookups (e.g. ``supports_vision`` for vLLM) and
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are surfaced in the frontend via ``CUSTOM_PROVIDER_PRESETS`` instead of
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the cloud-provider dropdown.
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"""
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result = []
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for provider_type, info in PROVIDER_REGISTRY.items():
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if info.get("hidden"):
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continue
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result.append(
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{
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"provider_type": provider_type,
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"display_name": info["display_name"],
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"base_url": info["base_url"],
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"default_models": info["default_models"],
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"supports_streaming": info["supports_streaming"],
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"supports_vision": info.get("supports_vision", False),
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"supports_tool_calling": info.get("supports_tool_calling", False),
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"model_list_mode": info.get("model_list_mode", "remote"),
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}
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)
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return result
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