modelparams.dev
Length integer 255 models

Max tokens max_tokens

Maximum number of output tokens the model may generate.

Type
integer
Default
varies by model
Range
1 – 131072

max_tokens by model

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

Model Provider Type Default Range / values Condition
Qwen Coder Plus Alibaba integer — 1…+∞ —
Qwen Flash Alibaba integer — 1…+∞ —
Qwen Flash Character Alibaba integer — 1…+∞ —
Qwen Max Alibaba integer — 1…+∞ —
Qwen Plus Alibaba integer — 1…+∞ —
Qwen Plus Character Alibaba integer — 1…+∞ —
Qwen Plus Latest Alibaba integer — 1…+∞ —
Qwen Turbo Alibaba integer — 1…+∞ —
Qwen Vl Max Alibaba integer — 1…+∞ —
Qwen Vl Plus Alibaba integer — 1…+∞ —
Qwen3 14B Alibaba integer — 1…+∞ —
Qwen3 235B A22B Alibaba integer — 1…+∞ —
Qwen3 235B A22B Instruct 2507 Alibaba integer — 1…+∞ —
Qwen3 235B A22B Thinking 2507 Alibaba integer — 1…+∞ —
Qwen3 30B A3B Alibaba integer — 1…+∞ —
Qwen3 30B A3B Instruct 2507 Alibaba integer — 1…+∞ —
Qwen3 30B A3B Thinking 2507 Alibaba integer — 1…+∞ —
Qwen3 8B Alibaba integer — 1…+∞ —
Qwen3 Coder 480B A35B Instruct Alibaba integer — 1…+∞ —
Qwen3 Coder Flash Alibaba integer — 1…+∞ —
Qwen3 Coder Next Alibaba integer — 1…+∞ —
Qwen3 Coder Plus Alibaba integer — 1…+∞ —
Qwen3 Max Alibaba integer — 1…+∞ —
Qwen3 Max Preview Alibaba integer — 1…+∞ —
Qwen3 Next 80B A3B Instruct Alibaba integer — 1…+∞ —
Qwen3 Next 80B A3B Thinking Alibaba integer — 1…+∞ —
Qwen3 Omni Flash Alibaba integer — 1…+∞ —
Qwen3 Omni Flash 2025-09-15 Alibaba integer — 1…+∞ —
Qwen3 Omni Flash 2025-12-01 Alibaba integer — 1…+∞ —
Qwen3 Vl 235B A22B Instruct Alibaba integer — 1…+∞ —
Qwen3 Vl 235B A22B Thinking Alibaba integer — 1…+∞ —
Qwen3 Vl Flash Alibaba integer — 1…+∞ —
Qwen3 Vl Flash 2026-01-22 Alibaba integer — 1…+∞ —
Qwen3 Vl Plus Alibaba integer — 1…+∞ —
Qwen3 Vl Plus 2025-09-23 Alibaba integer — 1…+∞ —
Qwen3 Vl Plus 2025-12-19 Alibaba integer — 1…+∞ —
Qwen3.5 Alibaba integer — 1…+∞ —
Qwen3.5 122B A10B Alibaba integer — 1…+∞ —
Qwen3.5 27B Alibaba integer — 1…+∞ —
Qwen3.5 35B A3B Alibaba integer — 1…+∞ —
Qwen3.5 397B A17B Alibaba integer — 1…+∞ —
Qwen3.5 Flash Alibaba integer — 1…+∞ —
Qwen3.5 Omni Flash Alibaba integer — 1…+∞ —
Qwen3.5 Omni Flash 2026-03-15 Alibaba integer — 1…+∞ —
Qwen3.5 Omni Plus Alibaba integer — 1…+∞ —
Qwen3.5 Omni Plus 2026-03-15 Alibaba integer — 1…+∞ —
Qwen3.5 Plus Alibaba integer — 1…+∞ —
Qwen3.5 Plus 2026-02-15 Alibaba integer — 1…+∞ —
Qwen3.5 Plus 2026-04-20 Alibaba integer — 1…+∞ —
QwQ Plus Alibaba integer — 1…+∞ —
Claude 3 Opus 20240229 Anthropic integer 4096 1…+∞ —
Claude 3 Opus Latest Anthropic integer 4096 1…+∞ —
Claude 3.5 Haiku 20241022 Anthropic integer 4096 1…+∞ —
Claude 3.5 Haiku Latest Anthropic integer 4096 1…+∞ —
Claude 3.5 Sonnet 20241022 Anthropic integer 4096 1…+∞ —
Claude 3.5 Sonnet Latest Anthropic integer 4096 1…+∞ —
Claude 3.7 Sonnet 20250219 Anthropic integer 4096 1…+∞ —
Claude 3.7 Sonnet Latest Anthropic integer 4096 1…+∞ —
Claude Fable 5 Anthropic integer 4096 1…+∞ —
Claude Fable 5 Subscription Anthropic integer 4096 1…+∞ —
Claude Fable 5.1 Anthropic integer 4096 1…+∞ —
Claude Haiku 4 Anthropic integer 4096 1…+∞ —
Claude Haiku 4 Subscription Anthropic integer 4096 1…+∞ —
Claude Haiku 4.5 Anthropic integer 4096 1…+∞ —
Claude Haiku 4.5 Subscription Anthropic integer 4096 1…+∞ —
Claude Haiku 4.5 20251001 Anthropic integer 4096 1…+∞ —
Claude Haiku 4.5 20251001 Subscription Anthropic integer 4096 1…+∞ —
Claude Opus 4 Subscription Anthropic integer 4096 1…+∞ —
Claude Opus 4 20250514 Anthropic integer 4096 1…+∞ —
Claude Opus 4 20250514 Subscription Anthropic integer 4096 1…+∞ —
Claude Opus 4.1 20250805 Anthropic integer 4096 1…+∞ —
Claude Opus 4.1 20250805 Subscription Anthropic integer 4096 1…+∞ —
Claude Opus 4.5 20251101 Anthropic integer 4096 1…+∞ —
Claude Opus 4.5 20251101 Subscription Anthropic integer 4096 1…+∞ —
Claude Opus 4.6 Anthropic integer 4096 1…+∞ —
Claude Opus 4.6 Subscription Anthropic integer 4096 1…+∞ —
Claude Opus 4.7 Anthropic integer 4096 1…+∞ —
Claude Opus 4.7 Subscription Anthropic integer 4096 1…+∞ —
Claude Opus 4.8 Anthropic integer 4096 1…+∞ —
Claude Opus 4.8 Subscription Anthropic integer 4096 1…+∞ —
Claude Opus 5 Anthropic integer 4096 1…+∞ —
Claude Opus 5 Subscription Anthropic integer 4096 1…+∞ —
Claude Sonnet 4 Subscription Anthropic integer 4096 1…+∞ —
Claude Sonnet 4 20250514 Anthropic integer 4096 1…+∞ —
Claude Sonnet 4 20250514 Subscription Anthropic integer 4096 1…+∞ —
Claude Sonnet 4.5 Anthropic integer 4096 1…+∞ —
Claude Sonnet 4.5 Subscription Anthropic integer 4096 1…+∞ —
Claude Sonnet 4.5 20250929 Anthropic integer 4096 1…+∞ —
Claude Sonnet 4.5 20250929 Subscription Anthropic integer 4096 1…+∞ —
Claude Sonnet 4.6 Anthropic integer 4096 1…+∞ —
Claude Sonnet 4.6 Subscription Anthropic integer 4096 1…+∞ —
Claude Sonnet 5 Anthropic integer 4096 1…+∞ —
Claude Sonnet 5 Subscription Anthropic integer 4096 1…+∞ —
Command A 03 2025 Cohere integer — 1…+∞ —
Command A Plus 05 2026 Cohere integer — 1…+∞ —
Command A Reasoning 08 2025 Cohere integer — 1…+∞ —
Command A Translate 08 2025 Cohere integer — 1…+∞ —
Command A Vision 07 2025 Cohere integer — 1…+∞ —
Command R 08 2024 Cohere integer — 1…+∞ —
Command R Plus 08 2024 Cohere integer — 1…+∞ —
Command R7B 12 2024 Cohere integer — 1…+∞ —
DeepSeek Chat DeepSeek integer 4096 1…+∞ —
DeepSeek Reasoner DeepSeek integer 4096 1…+∞ —
DeepSeek-V4 Flash DeepSeek integer 4096 1…+∞ —
DeepSeek-V4 Pro DeepSeek integer 4096 1…+∞ —
DeepSeek v4 Flash 0731 Fireworks integer — 1…+∞ —
DeepSeek v4 Flash Vision Exp Fireworks integer — 1…+∞ —
DeepSeek v4 Pro Fireworks integer — 1…+∞ —
DeepSeek v4 Pro 0813 Fireworks integer — 1…+∞ —
DeepSeek V4p1 Flash Fireworks integer — 1…+∞ —
Ember 1 Fireworks integer — 1…+∞ —
GLM-5p2 Fireworks integer — 1…+∞ —
GLM-5p3 Fireworks integer — 1…+∞ —
GLM-5p3 Flash Fireworks integer — 1…+∞ —
GPT-OSS 120B Fireworks integer — 1…+∞ —
GPT-OSS 20B Fireworks integer — 1…+∞ —
Inkling Fireworks integer — 1…+∞ —
Kimi K2p6 Fireworks integer — 1…+∞ —
Kimi K2p7 Code Fireworks integer — 1…+∞ —
Kimi K3 Fireworks integer — 1…+∞ —
MiniMax M2p7 Fireworks integer — 1…+∞ —
MiniMax M3 Fireworks integer — 1…+∞ —
Muse Glimmer 30B Fireworks integer — 1…+∞ —
Nemotron 3 Ultra Nvfp4 Fireworks integer — 1…+∞ —
Nemotron Lightning 3p5 30B A3B Fireworks integer — 1…+∞ —
Qwen3p7 Plus Fireworks integer — 1…+∞ —
Qwen3p8 2p4t A95B Fireworks integer — 1…+∞ —
Qwen3p8 Max Fireworks integer — 1…+∞ —
MiniMax M2 Subscription MiniMax integer — 1…+∞ —
MiniMax M2.1 Subscription MiniMax integer — 1…+∞ —
MiniMax M2.1 Highspeed Subscription MiniMax integer — 1…+∞ —
MiniMax M2.5 Subscription MiniMax integer — 1…+∞ —
MiniMax M2.5 Highspeed Subscription MiniMax integer — 1…+∞ —
MiniMax M2.7 Subscription MiniMax integer — 1…+∞ —
MiniMax M2.7 Highspeed Subscription MiniMax integer — 1…+∞ —
MiniMax M3 Subscription MiniMax integer — 1…+∞ —
Codestral 2508 Mistral integer — 1…+∞ —
Codestral Latest Mistral integer — 1…+∞ —
Devstral 2512 Mistral integer — 1…+∞ —
Devstral Latest Mistral integer — 1…+∞ —
GLM-5.2 Mistral integer — 1…+∞ —
Magistral Medium Latest Mistral integer — 1…+∞ —
Magistral Small Latest Mistral integer — 1…+∞ —
Ministral 14B 2512 Mistral integer — 1…+∞ —
Ministral 14B Latest Mistral integer — 1…+∞ —
Ministral 3B 2512 Mistral integer — 1…+∞ —
Ministral 3B Latest Mistral integer — 1…+∞ —
Ministral 8B 2512 Mistral integer — 1…+∞ —
Ministral 8B Latest Mistral integer — 1…+∞ —
Mistral Code Latest Mistral integer — 1…+∞ —
Mistral Large 2512 Mistral integer — 1…+∞ —
Mistral Large Latest Mistral integer — 1…+∞ —
Mistral Medium Mistral integer — 1…+∞ —
Mistral Medium 2604 Mistral integer — 1…+∞ —
Mistral Medium 3 Mistral integer — 1…+∞ —
Mistral Medium 3.5 Mistral integer — 1…+∞ —
Mistral Medium Latest Mistral integer — 1…+∞ —
Mistral NeMo Mistral integer — 1…+∞ —
Mistral Small 2603 Mistral integer — 1…+∞ —
Mistral Small Latest Mistral integer — 1…+∞ —
Voxtral Small 2507 Mistral integer — 1…+∞ —
Voxtral Small Latest Mistral integer — 1…+∞ —
Zai GLM-5 Mistral integer — 1…+∞ —
Zai GLM-5.2 Mistral integer — 1…+∞ —
Zai GLM-5.3 Mistral integer — 1…+∞ —
Zai GLM-Latest Mistral integer — 1…+∞ —
DeepSeek v4 Flash 0731 NVIDIA integer 4096 1…16384 —
DeepSeek v4 Pro 0813 NVIDIA integer 4096 1…16384 —
Diffusiongemma 26B A4B IT NVIDIA integer 4096 1…16384 —
Gemma 4 31B IT NVIDIA integer 4096 1…16384 —
GLM-5.3 Flash NVIDIA integer 4096 1…16384 —
GPT-OSS 120B NVIDIA integer 4096 1…16384 —
GPT-OSS 20B NVIDIA integer 4096 1…16384 —
Kimi K3 NVIDIA integer 4096 1…16384 —
Laguna Xs 2.1 NVIDIA integer 4096 1…16384 —
Llama 3.1 NemoGuard 8B Topic Control NVIDIA integer 1024 1…+∞ —
Llama 3.1 Nemotron Nano 8B v1 NVIDIA integer 4096 1…16384 —
Llama 3.1 Nemotron Ultra 253B v1 NVIDIA integer 4096 1…16384 —
Llama 3.2 11B Vision Instruct NVIDIA integer 4096 1…16384 —
Llama 3.2 90B Vision Instruct NVIDIA integer 4096 1…16384 —
Llama 3.3 Nemotron Super 49B v1 NVIDIA integer 4096 1…16384 —
Llama 3.3 Nemotron Super 49B v1.5 NVIDIA integer 65536 1…65536 —
MiniMax M3 NVIDIA integer 4096 1…16384 —
Mistral Nemotron NVIDIA integer 4096 1…16384 —
Muse Glimmer 30B NVIDIA integer 4096 1…16384 —
Nemotron 3 Nano 30B A3B NVIDIA integer 16384 1…32768 —
Nemotron 3 Nano Omni 30B A3B Reasoning NVIDIA integer 16384 1…32768 —
Nemotron 3 Super 120B A12B NVIDIA integer 16384 1…32768 —
Nemotron 3 Ultra Subscription NVIDIA integer 16384 1…32768 —
Nemotron 3 Ultra 550B A55B NVIDIA integer 16384 1…32768 —
Nemotron 3.5 Lightning 30B A3B NVIDIA integer 16384 1…32768 —
Nemotron Content Safety Reasoning 4B NVIDIA integer 16384 1…32768 —
Nemotron Mini 4B Instruct NVIDIA integer 1024 1…4096 —
Riva Translate 4B Instruct v1.1 NVIDIA integer 512 1…4096 —
USDCode Llama 3.1 70B Instruct NVIDIA integer 1024 1…2048 —
ChatGPT 4o Latest OpenAI integer 4096 1…+∞ —
GPT-3.5 Turbo OpenAI integer 4096 1…+∞ —
GPT-3.5 Turbo 0125 OpenAI integer 4096 1…+∞ —
GPT-3.5 Turbo 1106 OpenAI integer 4096 1…+∞ —
GPT-3.5 Turbo 16K OpenAI integer 4096 1…+∞ —
GPT-4 0613 OpenAI integer 4096 1…+∞ —
GPT-4 Turbo OpenAI integer 4096 1…+∞ —
GPT-4 Turbo 2024-04-09 OpenAI integer 4096 1…+∞ —
GPT-4.1 OpenAI integer 4096 1…+∞ —
GPT-4.1 Mini OpenAI integer 4096 1…+∞ —
GPT-4.1 Nano OpenAI integer 4096 1…+∞ —
GPT-4o OpenAI integer 4096 1…+∞ —
GPT-4o 2024-11-20 OpenAI integer 4096 1…+∞ —
GPT-4o mini OpenAI integer 4096 1…+∞ —
o1-mini OpenAI integer 4096 1…+∞ —
o1-preview OpenAI integer 4096 1…+∞ —
DeepSeek Flash Subscription Opencode Go integer — 1…+∞ —
DeepSeek v4 Flash Vision Exp Subscription Opencode Go integer — 1…+∞ —
GLM-5.3 Subscription Opencode Go integer — 1…+∞ —
GLM-5.3 Flash Subscription Opencode Go integer — 1…+∞ —
Hy3 Subscription Opencode Go integer — 1…+∞ —
Hy4 Preview Subscription Opencode Go integer — 1…+∞ —
Longcat 2.0 Subscription Opencode Go integer — 1…+∞ —
Longcat 2.5 Preview Free Subscription Opencode Go integer — 1…+∞ —
MiMo v2.6 Flash Subscription Opencode Go integer — 1…+∞ —
MiMo v2.6 Pro Subscription Opencode Go integer — 1…+∞ —
MiniMax M2.7 Subscription Opencode Go integer — 1…+∞ —
Omen Alpha Subscription Opencode Go integer — 1…+∞ —
Qwen3.8 Flash Subscription Opencode Go integer — 1…+∞ —
Qwen3.8 Max Subscription Opencode Go integer — 1…+∞ —
Space Bunny Free Subscription Opencode Go integer — 1…+∞ —
Sonar Perplexity integer — 1…128000 —
Sonar Deep Research Perplexity integer — 1…128000 —
Sonar Pro Perplexity integer — 1…128000 —
Sonar Reasoning Pro Perplexity integer — 1…128000 —
Inkling Thinking Machines integer — 1…+∞ —
GLM-4.5 Z.ai integer 65536 1…98304 —
GLM-4.5 Subscription Z.ai integer 65536 1…98304 —
GLM-4.5-Air Z.ai integer 65536 1…98304 —
GLM-4.5-Air Subscription Z.ai integer 65536 1…98304 —
GLM-4.5-AirX Z.ai integer 65536 1…98304 —
GLM-4.5-Flash Z.ai integer 65536 1…98304 —
GLM-4.5-X Z.ai integer 65536 1…98304 —
GLM-4.6 Z.ai integer 65536 1…131072 —
GLM-4.6 Subscription Z.ai integer 65536 1…131072 —
GLM-4.7 Z.ai integer 65536 1…131072 —
GLM-4.7 Subscription Z.ai integer 65536 1…131072 —
GLM-4.7-Flash Z.ai integer 65536 1…131072 —
GLM-4.7-FlashX Z.ai integer 65536 1…131072 —
GLM-5 Z.ai integer 65536 1…131072 —
GLM-5 Subscription Z.ai integer 65536 1…131072 —
GLM-5-Turbo Z.ai integer 65536 1…131072 —
GLM-5-Turbo Subscription Z.ai integer 65536 1…131072 —
GLM-5.1 Z.ai integer 65536 1…131072 —
GLM-5.1 Subscription Z.ai integer 65536 1…131072 —
GLM-5.2 Z.ai integer 65536 1…131072 —
GLM-5.2 Subscription Z.ai integer 65536 1…131072 —
GLM-5.3 Z.ai integer 65536 1…131072 —
GLM-5.3 Flash Z.ai integer 65536 1…131072 —
GLM-5.3 Flashx Z.ai integer 65536 1…131072 —

Models without max_tokens documented yet

These models don't list max_tokens 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.

Cerebras

Opencode Go

Related length parameters

Resources

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