modelparams.dev
Length integer 175 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 Flash Alibaba integer 1…+∞
Qwen Max Alibaba integer 1…+∞
Qwen Plus Alibaba integer 1…+∞
Qwen Turbo Alibaba integer 1…+∞
Qwen3 235B A22B Thinking 2507 Alibaba integer 1…+∞
Qwen3 30B A3B Instruct 2507 Alibaba integer 1…+∞
Qwen3 30B A3B Thinking 2507 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 Next 80B A3B Instruct Alibaba integer 1…+∞
Qwen3 Next 80B A3B Thinking Alibaba integer 1…+∞
Qwen3 Vl 235B A22B Instruct Alibaba integer 1…+∞
Qwen3 Vl 235B A22B Thinking 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…+∞
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 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 Pro Fireworks integer 1…+∞
DeepSeek v4 Pro 0813 Fireworks integer 1…+∞
GLM-5p2 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…+∞
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…+∞
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 Large 2512 Mistral integer 1…+∞
Mistral Large Latest 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…+∞
DeepSeek v4 Flash 0731 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 3.3 Nemotron Super 49B v1 NVIDIA integer 4096 1…16384
Llama 3.3 Nemotron Super 49B v1.5 NVIDIA integer 65536 1…65536
Nemotron 3 Nano 30B A3B 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 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 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…+∞
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 1…+∞
GLM-4.5 Subscription Z.ai integer 1…+∞
GLM-4.5-Air Z.ai integer 1…+∞
GLM-4.5-Air Subscription Z.ai integer 1…+∞
GLM-4.5-AirX Z.ai integer 1…+∞
GLM-4.5-Flash Z.ai integer 1…+∞
GLM-4.5-X Z.ai integer 1…+∞
GLM-4.6 Z.ai integer 1…+∞
GLM-4.6 Subscription Z.ai integer 1…+∞
GLM-4.7 Z.ai integer 1…+∞
GLM-4.7 Subscription Z.ai integer 1…+∞
GLM-4.7-Flash Z.ai integer 1…+∞
GLM-4.7-FlashX Z.ai integer 1…+∞
GLM-5 Z.ai integer 1…+∞
GLM-5 Subscription Z.ai integer 1…+∞
GLM-5-Turbo Z.ai integer 1…+∞
GLM-5-Turbo Subscription Z.ai integer 1…+∞
GLM-5.1 Z.ai integer 1…+∞
GLM-5.1 Subscription Z.ai integer 1…+∞
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

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

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