modelparams.dev
API MCP GitHub

Providers

Alibaba Anthropic Bedrock Cerebras Cohere DeepSeek Fireworks Google Groq Meta MiniMax Mistral Moonshot AI NVIDIA OpenAI 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 Perplexity Thinking Machines Vertex xAI Xiaomi Z.ai
Output enum 106 models

Response format response_format.type

Forces the response into plain text or a JSON object.

Type
enum
Default
"text"

response_format.type by model

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

Model Provider Type Default Range / values Condition
Zai GLM-4.7 Cerebras enum "text" text | json_object —
Command A 03 2025 Cohere enum "text" text | json_object —
Command A Plus 05 2026 Cohere enum "text" text | json_object —
Command A Reasoning 08 2025 Cohere enum "text" text | json_object —
Command A Translate 08 2025 Cohere enum "text" text | json_object —
Command A Vision 07 2025 Cohere enum "text" text | json_object —
Command R 08 2024 Cohere enum "text" text | json_object —
Command R Plus 08 2024 Cohere enum "text" text | json_object —
Command R7B 12 2024 Cohere enum "text" text | json_object —
DeepSeek v4 Flash 0731 Fireworks enum — text | json_object —
DeepSeek v4 Pro Fireworks enum — text | json_object —
DeepSeek v4 Pro 0813 Fireworks enum — text | json_object —
GLM-5p2 Fireworks enum — text | json_object —
GPT-OSS 120B Fireworks enum — text | json_object —
GPT-OSS 20B Fireworks enum — text | json_object —
Inkling Fireworks enum — text | json_object —
Kimi K2p6 Fireworks enum — text | json_object —
Kimi K2p7 Code Fireworks enum — text | json_object —
Kimi K3 Fireworks enum — text | json_object —
MiniMax M2p7 Fireworks enum — text | json_object —
MiniMax M3 Fireworks enum — text | json_object —
Muse Glimmer 30B Fireworks enum — text | json_object —
Qwen3p7 Plus Fireworks enum — text | json_object —
Qwen3p8 2p4t A95B Fireworks enum — text | json_object —
Qwen3p8 Max Fireworks enum — text | json_object —
GPT-OSS 120B Groq enum "text" text | json_object —
GPT-OSS 20B Groq enum "text" text | json_object —
GPT-OSS Safeguard 20B Groq enum "text" text | json_object —
Qwen3 32B Groq enum "text" text | json_object —
Qwen3.6 27B Groq enum "text" text | json_object —
Llama 3.3 70B Instruct Meta enum "text" text | json_schema —
Llama 3.3 8B Instruct Meta enum "text" text | json_schema —
Llama 4 Maverick 17B 128E Instruct FP8 Meta enum "text" text | json_schema —
Llama 4 Scout 17B 16E Instruct FP8 Meta enum "text" text | json_schema —
Muse Spark 1.1 Meta enum "text" text | json_object | json_schema —
Muse Spark 1.2 Contributor Meta enum "text" text | json_object | json_schema —
Codestral 2508 Mistral enum "text" text | json_object | json_schema —
Codestral Latest Mistral enum "text" text | json_object | json_schema —
Devstral 2512 Mistral enum "text" text | json_object | json_schema —
Devstral Latest Mistral enum "text" text | json_object | json_schema —
Magistral Medium Latest Mistral enum "text" text | json_object | json_schema —
Magistral Small Latest Mistral enum "text" text | json_object | json_schema —
Ministral 14B 2512 Mistral enum "text" text | json_object | json_schema —
Ministral 14B Latest Mistral enum "text" text | json_object | json_schema —
Ministral 3B 2512 Mistral enum "text" text | json_object | json_schema —
Ministral 3B Latest Mistral enum "text" text | json_object | json_schema —
Ministral 8B 2512 Mistral enum "text" text | json_object | json_schema —
Ministral 8B Latest Mistral enum "text" text | json_object | json_schema —
Mistral Large 2512 Mistral enum "text" text | json_object | json_schema —
Mistral Large Latest Mistral enum "text" text | json_object | json_schema —
Mistral Medium 3 Mistral enum "text" text | json_object | json_schema —
Mistral Medium 3.5 Mistral enum "text" text | json_object | json_schema —
Mistral Medium Latest Mistral enum "text" text | json_object | json_schema —
Mistral NeMo Mistral enum "text" text | json_object | json_schema —
Mistral Small 2603 Mistral enum "text" text | json_object | json_schema —
Mistral Small Latest Mistral enum "text" text | json_object | json_schema —
Kimi K2.5 Moonshot AI enum "text" text | json_object —
Kimi K2.6 Moonshot AI enum "text" text | json_object —
Kimi K2.6 Subscription Moonshot AI enum "text" text | json_object —
Kimi K2.7 Code Moonshot AI enum "text" text | json_object | json_schema —
Kimi K2.7 Code Subscription Moonshot AI enum "text" text | json_object —
Kimi K2.7 Code Highspeed Moonshot AI enum "text" text | json_object | json_schema —
Kimi K2.7 Code Highspeed Subscription Moonshot AI enum "text" text | json_object —
Kimi K3 Moonshot AI enum "text" text | json_object | json_schema —
Moonshot v1 128K Moonshot AI enum "text" text | json_object —
Moonshot v1 32K Moonshot AI enum "text" text | json_object —
Moonshot v1 8K Moonshot AI enum "text" text | json_object —
GPT-4 OpenAI enum "text" text | json_schema —
GPT-OSS 120B OpenAI enum "text" text | json_schema —
GPT-OSS 20B OpenAI enum "text" text | json_schema —
Grok 4.20 0309 Non Reasoning xAI enum "text" text | json_object | json_schema —
Grok 4.20 0309 Non Reasoning Subscription xAI enum "text" text | json_object | json_schema —
Grok 4.20 0309 Reasoning xAI enum "text" text | json_object | json_schema —
Grok 4.20 0309 Reasoning Subscription xAI enum "text" text | json_object | json_schema —
Grok 4.3 xAI enum "text" text | json_object | json_schema —
Grok 4.3 Subscription xAI enum "text" text | json_object | json_schema —
Grok 4.5 xAI enum "text" text | json_object | json_schema —
Grok 4.5 Subscription xAI enum "text" text | json_object | json_schema —
Grok 4.6 xAI enum "text" text | json_object | json_schema —
Grok Build 0.1 xAI enum "text" text | json_object | json_schema —
Grok Build 0.1 Subscription xAI enum "text" text | json_object | json_schema —
MiMo v2.5 Xiaomi enum "text" text | json_object —
MiMo v2.5 Subscription Xiaomi enum "text" text | json_object —
MiMo v2.5 Pro Xiaomi enum "text" text | json_object —
GLM-4.5 Z.ai enum "text" text | json_object —
GLM-4.5 Subscription Z.ai enum "text" text | json_object —
GLM-4.5-Air Z.ai enum "text" text | json_object —
GLM-4.5-Air Subscription Z.ai enum "text" text | json_object —
GLM-4.5-AirX Z.ai enum "text" text | json_object —
GLM-4.5-Flash Z.ai enum "text" text | json_object —
GLM-4.5-X Z.ai enum "text" text | json_object —
GLM-4.6 Z.ai enum "text" text | json_object —
GLM-4.6 Subscription Z.ai enum "text" text | json_object —
GLM-4.7 Z.ai enum "text" text | json_object —
GLM-4.7 Subscription Z.ai enum "text" text | json_object —
GLM-4.7-Flash Z.ai enum "text" text | json_object —
GLM-4.7-FlashX Z.ai enum "text" text | json_object —
GLM-5 Z.ai enum "text" text | json_object —
GLM-5 Subscription Z.ai enum "text" text | json_object —
GLM-5-Turbo Z.ai enum "text" text | json_object —
GLM-5-Turbo Subscription Z.ai enum "text" text | json_object —
GLM-5.1 Z.ai enum "text" text | json_object —
GLM-5.1 Subscription Z.ai enum "text" text | json_object —
GLM-5.2 Z.ai enum "text" text | json_object —
GLM-5.2 Subscription Z.ai enum "text" text | json_object —
GLM-5.3 Z.ai enum "text" text | json_object —

Models without response_format.type documented yet

These models don't list response_format.type 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 GLM-5.1 GLM-5.2 Kimi K2.7 Code Qwen Flash Qwen Max Qwen Plus Qwen Turbo Qwen3 235B A22B Thinking 2507 Qwen3 30B A3B Instruct 2507 Qwen3 30B A3B Thinking 2507 Qwen3 Coder Flash Qwen3 Coder Next Qwen3 Coder Plus Qwen3 Max Qwen3 Next 80B A3B Instruct Qwen3 Next 80B A3B Thinking Qwen3 Vl 235B A22B Instruct Qwen3 Vl 235B A22B Thinking Qwen3.5 Qwen3.5 122B A10B Qwen3.5 27B Qwen3.5 35B A3B Qwen3.5 397B A17B Qwen3.5 Flash 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 Plus Qwen3.8 2.4t A95B Qwen3.8 27B Qwen3.8 Max 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 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

DeepSeek

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

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 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

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

NVIDIA

DeepSeek v4 Flash 0731 GLiNER PII Llama 3.1 NemoGuard 8B Topic Control Llama 3.1 Nemotron Nano 8B v1 Llama 3.1 Nemotron Safety Guard 8B v3 Llama 3.1 Nemotron Ultra 253B v1 Llama 3.3 Nemotron Super 49B v1 Llama 3.3 Nemotron Super 49B v1.5 NemoGuard Jailbreak Detect Nemotron 3 Nano 30B A3B Nemotron 3 Super 120B A12B Nemotron 3 Ultra Nemotron 3 Ultra 550B A55B Nemotron Content Safety Reasoning 4B Nemotron Mini 4B Instruct Riva Translate 4B Instruct v1.1 USDCode Llama 3.1 70B Instruct

OpenAI

ChatGPT 4o Latest GPT-3.5 Turbo GPT-3.5 Turbo 16K 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-5.3 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-OSS Safeguard 120B GPT-OSS Safeguard 20B o1 o1-mini o1-preview o3 o3-mini o3-pro o4-mini

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 Multi Agent 0309

Related output parameters

Response MIME type generationConfig.responseMimeType Verbosity text.verbosity Text format text.format.type

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