modelparams.dev
API MCP GitHub

Providers

Alibaba Anthropic Bedrock Cerebras Cohere DeepSeek Fireworks Google Groq Meta MiniMax Mistral Moonshot AI NVIDIA OpenAI Opencode Go Perplexity Thinking Machines Vertex xAI Xiaomi Z.ai

Providers

Alibaba Anthropic Bedrock Cerebras Cohere DeepSeek Fireworks Google Groq Meta MiniMax Mistral Moonshot AI NVIDIA OpenAI Opencode Go Perplexity Thinking Machines Vertex xAI Xiaomi Z.ai
Length string 63 models

Stop sequence stop

A string or list of strings where the API will stop generating further tokens. The returned text will not contain the stop sequence.

Type
string
Default
no default

stop by model

The exact type, default, range, and conditions for stop on each model that documents it.

Model Provider Type Default Range / values Condition
Zai GLM-4.7 Cerebras string — — —
GPT-OSS 120B Groq string — — —
GPT-OSS 20B Groq string — — —
GPT-OSS Safeguard 20B Groq string — — —
Qwen3 32B Groq string — — —
Qwen3.6 27B Groq string — — —
Qwen3.8 27B Groq string — — —
Codestral 2508 Mistral string — — —
Codestral Latest Mistral string — — —
Devstral 2512 Mistral string — — —
Devstral Latest Mistral string — — —
GLM-5.2 Mistral string — — —
Magistral Medium Latest Mistral string — — —
Magistral Small Latest Mistral string — — —
Ministral 14B 2512 Mistral string — — —
Ministral 14B Latest Mistral string — — —
Ministral 3B 2512 Mistral string — — —
Ministral 3B Latest Mistral string — — —
Ministral 8B 2512 Mistral string — — —
Ministral 8B Latest Mistral string — — —
Mistral Large 2512 Mistral string — — —
Mistral Large Latest Mistral string — — —
Mistral Medium 3 Mistral string — — —
Mistral Medium 3.5 Mistral string — — —
Mistral Medium Latest Mistral string — — —
Mistral NeMo Mistral string — — —
Mistral Small 2603 Mistral string — — —
Mistral Small Latest Mistral string — — —
Kimi K2.5 Moonshot AI string — — —
Kimi K2.6 Moonshot AI string — — —
Kimi K2.7 Code Moonshot AI string — — —
Kimi K2.7 Code Highspeed Moonshot AI string — — —
Kimi K3 Moonshot AI string — — —
Moonshot v1 128K Moonshot AI string — — —
Moonshot v1 32K Moonshot AI string — — —
Moonshot v1 8K Moonshot AI string — — —
DeepSeek v4 Flash 0731 NVIDIA string — — —
DeepSeek v4 Pro 0813 NVIDIA string — — —
Gemma 4 31B IT NVIDIA string — — —
GLM-5.3 Flash NVIDIA string — — —
GPT-OSS 120B NVIDIA string — — —
GPT-OSS 20B NVIDIA string — — —
Kimi K3 NVIDIA string — — —
Laguna Xs 2.1 NVIDIA string — — —
Llama 3.1 NemoGuard 8B Topic Control NVIDIA string — — —
Llama 3.1 Nemotron Nano 8B v1 NVIDIA string — — —
Llama 3.1 Nemotron Ultra 253B v1 NVIDIA string — — —
Llama 3.3 Nemotron Super 49B v1 NVIDIA string — — —
Llama 3.3 Nemotron Super 49B v1.5 NVIDIA string — — —
MiniMax M3 NVIDIA string — — —
Muse Glimmer 30B NVIDIA string — — —
Nemotron 3 Nano 30B A3B NVIDIA string — — —
Nemotron 3 Super 120B A12B NVIDIA string — — —
Nemotron 3 Ultra Subscription NVIDIA string — — —
Nemotron 3 Ultra 550B A55B NVIDIA string — — —
Nemotron Content Safety Reasoning 4B NVIDIA string — — —
Nemotron Mini 4B Instruct NVIDIA string — — —
Riva Translate 4B Instruct v1.1 NVIDIA string — — —
Grok 4.20 0309 Non Reasoning xAI string — — —
Grok 4.20 0309 Non Reasoning Subscription xAI string — — —
Grok 4.6 xAI string — — —
Grok 4.7 xAI string — — —
MiMo v2.5 Pro Xiaomi string — — —

Models without stop documented yet

These models don't list stop in the catalog. That may mean the provider doesn't accept it, or it simply hasn't been added yet — the data is community-maintained.

Alibaba

DeepSeek v3.2 DeepSeek v4 Flash DeepSeek v4 Flash 0731 DeepSeek v4 Pro DeepSeek v4 Pro 0813 DeepSeek v4.1 Flash GLM-5.1 GLM-5.2 GLM-5.3 GLM-5.3 Prime Kimi K2.7 Code Kimi K3 Qvq Max Qwen Coder Plus Qwen Flash Qwen Flash Character Qwen Max Qwen Plus Qwen Plus Character Qwen Plus Latest Qwen Turbo Qwen Vl Max Qwen Vl Plus Qwen3 14B Qwen3 235B A22B Qwen3 235B A22B Instruct 2507 Qwen3 235B A22B Thinking 2507 Qwen3 30B A3B Qwen3 30B A3B Instruct 2507 Qwen3 30B A3B Thinking 2507 Qwen3 8B Qwen3 Coder 480B A35B Instruct Qwen3 Coder Flash Qwen3 Coder Next Qwen3 Coder Plus Qwen3 Max Qwen3 Max Preview Qwen3 Next 80B A3B Instruct Qwen3 Next 80B A3B Thinking Qwen3 Omni Flash Qwen3 Omni Flash 2025-09-15 Qwen3 Omni Flash 2025-12-01 Qwen3 Vl 235B A22B Instruct Qwen3 Vl 235B A22B Thinking Qwen3 Vl Flash Qwen3 Vl Flash 2026-01-22 Qwen3 Vl Plus Qwen3 Vl Plus 2025-09-23 Qwen3 Vl Plus 2025-12-19 Qwen3.5 Qwen3.5 122B A10B Qwen3.5 27B Qwen3.5 35B A3B Qwen3.5 397B A17B Qwen3.5 Flash Qwen3.5 Omni Flash Qwen3.5 Omni Flash 2026-03-15 Qwen3.5 Omni Plus Qwen3.5 Omni Plus 2026-03-15 Qwen3.5 Plus Qwen3.5 Plus 2026-02-15 Qwen3.5 Plus 2026-04-20 Qwen3.6 27B Qwen3.6 35B A3B Qwen3.6 Flash Qwen3.6 Max Preview Qwen3.6 Plus Qwen3.7 Flash Qwen3.7 Max Qwen3.7 Max Preview Qwen3.7 Plus Qwen3.8 2.4t A95B Qwen3.8 27B Qwen3.8 Flash Qwen3.8 Max Qwen3.8 Max 0902 Qwen3.8 Omni Flash QwQ Plus

Anthropic

Claude 3 Opus 20240229 Claude 3 Opus Latest Claude 3.5 Haiku 20241022 Claude 3.5 Haiku Latest Claude 3.5 Sonnet 20241022 Claude 3.5 Sonnet Latest Claude 3.7 Sonnet 20250219 Claude 3.7 Sonnet Latest Claude Fable 5 Claude Fable 5 Claude Fable 5.1 Claude Haiku 4 Claude Haiku 4 Claude Haiku 4.5 Claude Haiku 4.5 Claude Haiku 4.5 20251001 Claude Haiku 4.5 20251001 Claude Opus 4 Claude Opus 4 20250514 Claude Opus 4 20250514 Claude Opus 4.1 20250805 Claude Opus 4.1 20250805 Claude Opus 4.5 20251101 Claude Opus 4.5 20251101 Claude Opus 4.6 Claude Opus 4.6 Claude Opus 4.7 Claude Opus 4.7 Claude Opus 4.8 Claude Opus 4.8 Claude Opus 5 Claude Opus 5 Claude Sonnet 4 Claude Sonnet 4 20250514 Claude Sonnet 4 20250514 Claude Sonnet 4.5 Claude Sonnet 4.5 Claude Sonnet 4.5 20250929 Claude Sonnet 4.5 20250929 Claude Sonnet 4.6 Claude Sonnet 4.6 Claude Sonnet 5 Claude Sonnet 5

Bedrock

Claude Haiku 4.5 Claude Opus 4.5 20251101 Claude Opus 4.6 Claude Sonnet 4.5 Claude Sonnet 4.6 DeepSeek R1 DeepSeek v3.2 Devstral 2 123B Gemma 3 12B IT Gemma 3 27B IT Gemma 3 4B IT GLM-4.7 GLM-4.7 Flash GLM-5 GPT-OSS 120B GPT-OSS 20B GPT-OSS Safeguard 120B GPT-OSS Safeguard 20B Kimi K2 Thinking Kimi K2.5 Llama3 1 70B Instruct Llama3 1 8B Instruct Llama3 3 70B Instruct Llama3 70B Instruct Llama3 8B Instruct Magistral Small 2509 MiniMax M2 MiniMax M2.1 MiniMax M2.5 Ministral 3 14B Instruct Ministral 3 3B Instruct Ministral 3 8B Instruct Mistral 7B Instruct Mistral Large 2402 Mistral Large 3 675B Instruct Mistral Small 2402 Mixtral 8x7b Instruct Nemotron Nano 12B Nemotron Nano 3 30B Nemotron Nano 9B Nemotron Super 3 120B Nova 2 Lite Nova Lite Nova Micro Nova Pro Palmyra Vision 7B Palmyra X4 Palmyra X5 Pixtral Large 2502 Qwen3 32B Qwen3 Coder 30B A3B Qwen3 Coder Next Qwen3 Next 80B A3B Qwen3 Vl 235B A22B Voxtral Mini 3B 2507 Voxtral Small 24B 2507

Cohere

Command A 03 2025 Command A Plus 05 2026 Command A Reasoning 08 2025 Command A Translate 08 2025 Command A Vision 07 2025 Command R 08 2024 Command R Plus 08 2024 Command R7B 12 2024

DeepSeek

DeepSeek Chat DeepSeek Reasoner DeepSeek-V4 Flash DeepSeek-V4 Pro

Fireworks

DeepSeek v4 Flash 0731 DeepSeek v4 Flash Vision Exp DeepSeek v4 Pro DeepSeek v4 Pro 0813 DeepSeek V4p1 Flash Ember 1 GLM-5p2 GLM-5p3 GLM-5p3 Flash GPT-OSS 120B GPT-OSS 20B Inkling Kimi K2p6 Kimi K2p7 Code Kimi K3 MiniMax M2p7 MiniMax M3 Muse Glimmer 30B Nemotron 3 Ultra Nvfp4 Nemotron Lightning 3p5 30B A3B Qwen3p7 Plus Qwen3p8 2p4t A95B Qwen3p8 Max

Google

Gemini 2.5 Flash Gemini 2.5 Flash Gemini 2.5 Flash Lite Gemini 2.5 Flash Lite Gemini 2.5 Pro Gemini 2.5 Pro Gemini 3 Flash Preview Gemini 3 Flash Preview Gemini 3.1 Flash Lite Gemini 3.1 Flash Lite Gemini 3.1 Flash Lite Preview Gemini 3.1 Flash Lite Preview Gemini 3.1 Pro Preview Gemini 3.1 Pro Preview Gemini 3.1 Pro Preview Customtools Gemini 3.5 Flash Gemini 3.5 Flash Lite Gemini 3.6 Flash Gemini 3.7 Flash Gemini 3.8 Flash Gemini Flash Latest Gemma 3 12B IT Gemma 3 1B IT Gemma 3 27B IT Gemma 3 4B IT Gemma 3n E2B IT Gemma 3n E4B IT Gemma 4 12B IT Gemma 4 26B A4B IT Gemma 4 31B IT Gemma 4 E2B IT Gemma 4 E4B IT

Groq

Allam 2 7B

Meta

Llama 3.3 70B Instruct Llama 3.3 8B Instruct Llama 4 Maverick 17B 128E Instruct FP8 Llama 4 Scout 17B 16E Instruct FP8 Muse Spark 1.1 Muse Spark 1.2 Contributor

MiniMax

MiniMax M2 MiniMax M2 MiniMax M2.1 MiniMax M2.1 MiniMax M2.1 Highspeed MiniMax M2.1 Highspeed MiniMax M2.5 MiniMax M2.5 MiniMax M2.5 Highspeed MiniMax M2.5 Highspeed MiniMax M2.7 MiniMax M2.7 MiniMax M2.7 Highspeed MiniMax M2.7 Highspeed MiniMax M3 MiniMax M3

Mistral

Mistral Code Latest Mistral Medium Mistral Medium 2604 Voxtral Small 2507 Voxtral Small Latest Zai GLM-5 Zai GLM-5.2 Zai GLM-5.3 Zai GLM-Latest

Moonshot AI

Kimi K2.6 Kimi K2.7 Code Kimi K2.7 Code Highspeed

NVIDIA

Diffusiongemma 26B A4B IT GLiNER PII Llama 3.1 Nemotron Safety Guard 8B v3 Llama 3.2 11B Vision Instruct Llama 3.2 90B Vision Instruct Mistral Nemotron NemoGuard Jailbreak Detect Nemotron 3 Nano Omni 30B A3B Reasoning Nemotron 3.5 Lightning 30B A3B USDCode Llama 3.1 70B Instruct

OpenAI

ChatGPT 4o Latest GPT-3.5 Turbo GPT-3.5 Turbo 0125 GPT-3.5 Turbo 1106 GPT-3.5 Turbo 16K GPT-4 GPT-4 0613 GPT-4 Turbo GPT-4 Turbo 2024-04-09 GPT-4.1 GPT-4.1 Mini GPT-4.1 Nano GPT-4o GPT-4o 2024-11-20 GPT-4o mini GPT-5 GPT-5 Chat Latest GPT-5 Mini GPT-5 Nano GPT-5.1 GPT-5.1 Codex GPT-5.1 Codex Max GPT-5.2 GPT-5.2 GPT-5.2 Codex GPT-5.2 Pro GPT-5.3 Codex GPT-5.3 Codex GPT-5.3 Codex Spark GPT-5.4 GPT-5.4 GPT-5.4 Mini GPT-5.4 Mini GPT-5.4 Nano GPT-5.4 Pro GPT-5.4 Pro GPT-5.5 GPT-5.5 GPT-5.5 Pro GPT-5.5 Pro GPT-5.6 GPT-5.6 Luna GPT-5.6 Luna GPT-5.6 Sol GPT-5.6 Sol GPT-5.6 Terra GPT-5.6 Terra GPT-6 Astra GPT-6 Luna GPT-6 Sol GPT-6.1 Sol GPT-OSS 120B GPT-OSS 20B GPT-OSS Safeguard 120B GPT-OSS Safeguard 20B o1 o1-mini o1-preview o3 o3-mini o3-pro o4-mini

Opencode Go

DeepSeek Flash DeepSeek v4 Flash Vision Exp GLM-5.3 GLM-5.3 Flash Grok 4.6 Hy3 Hy4 Preview Longcat 2.0 Longcat 2.5 Preview Free MiMo v2.6 Flash MiMo v2.6 Pro MiniMax M2.7 Omen Alpha Qwen3.8 Flash Qwen3.8 Max Space Bunny Free

Perplexity

Sonar Sonar Deep Research Sonar Pro Sonar Reasoning Pro

Thinking Machines

Inkling

Vertex

Gemini 2.5 Flash Gemini 2.5 Flash Lite Gemini 2.5 Pro Gemini 3 Flash Preview Gemini 3.1 Flash Lite Gemini 3.1 Pro Preview Gemini 3.1 Pro Preview Customtools Gemini 3.5 Flash Gemini 3.5 Flash Lite Gemini 3.6 Flash Gemini 3.7 Flash

xAI

Grok 4.20 0309 Reasoning Grok 4.20 0309 Reasoning Grok 4.20 Multi Agent 0309 Grok 4.3 Grok 4.3 Grok 4.5 Grok 4.5 Grok 4.6 Grok Build 0.1 Grok Build 0.1

Xiaomi

MiMo v2.5 MiMo v2.5

Z.ai

GLM-4.5 GLM-4.5 GLM-4.5-Air GLM-4.5-Air GLM-4.5-AirX GLM-4.5-Flash GLM-4.5-X GLM-4.6 GLM-4.6 GLM-4.7 GLM-4.7 GLM-4.7-Flash GLM-4.7-FlashX GLM-5 GLM-5 GLM-5-Turbo GLM-5-Turbo GLM-5.1 GLM-5.1 GLM-5.2 GLM-5.2 GLM-5.3 GLM-5.3 Flash GLM-5.3 Flashx

Related length parameters

Max tokens max_tokens Max completion tokens max_completion_tokens Max tokens inferenceConfig.maxTokens Stop sequences inferenceConfig.stopSequences Max output tokens generationConfig.maxOutputTokens Candidate count generationConfig.candidateCount Stop sequences generationConfig.stopSequences Stop sequences stop_sequences Number of completions n Max output tokens max_output_tokens

Resources

All parameters Use the API Full catalog

How to use

Building with an AI agent? Hit Copy to grab this whole guide as Markdown and paste it in — or point your agent straight at /llms.txt.

modelparams.dev is an open, community-maintained catalog of model parameters. Each entry shows the knobs you can turn — type, default, range, and the conditions that gate it.

The same model accessed via an API key and via a subscription usually exposes a different set of parameters. We list both as separate entries so the data stays honest.

Catalog API

The full catalog is static JSON, CORS-enabled, served from the edge.

curl https://modelparams.dev/api/v1/models.json

Each entry is keyed by provider/model for API-key variants; subscription variants append -subscription.

If you only need the params for one model contract, use the providerless endpoint. Subscription contracts are model slugs with -subscription. 

curl https://modelparams.dev/api/v1/models/openai/gpt-5.5.json
curl https://modelparams.dev/api/v1/models/openai/gpt-5.5-subscription.json

Single model

curl https://modelparams.dev/api/v1/models/anthropic/claude-opus-4-7.json
curl https://modelparams.dev/api/v1/models/anthropic/claude-opus-4-7-subscription.json

JSON Schema

Every entry validates against a JSON Schema you can use in your editor or pipeline. 

curl https://modelparams.dev/api/v1/schema.json

Add this header to any YAML you author for autocomplete in VS Code: 

# yaml-language-server: $schema=https://modelparams.dev/api/v1/schema.json

Logos

Provider logos are available at /assets/logos/{provider}.svg where {provider} is the provider slug. They use currentColor so they inherit your text color. 

curl https://modelparams.dev/assets/logos/anthropic.svg

Logos are sourced from the models.dev repo (MIT) and used under nominative fair use.

Contribute

The data lives in YAML under models/{provider}/{model}-{auth}.yaml in the GitHub repo. Open a PR; CI validates against the schema and rebuilds.

Edit on GitHub MIT licensed