modelparams.dev
Sampling number 134 models

Top P top_p

Controls nucleus sampling by limiting generation to tokens within the selected cumulative probability.

Type
number
Default
varies by model
Range
0 – 1

top_p by model

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

Model Provider Type Default Range / values Condition
Qwen Flash Alibaba number 0…1 step 0.01
Qwen Plus Alibaba number 0…1 step 0.01
Qwen3 Coder Flash Alibaba number 0…1 step 0.01
Qwen3 Coder Plus Alibaba number 0…1 step 0.01
Qwen3 Max Alibaba number 0…1 step 0.01
Qwen3.5 Alibaba number 0…1 step 0.01
Qwen3.5 Flash Alibaba number 0…1 step 0.01
Qwq Plus Alibaba number 0…1 step 0.01
Claude 3 Opus 20240229 Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude 3 Opus Latest Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude 3.5 Haiku 20241022 Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude 3.5 Haiku Latest Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude 3.5 Sonnet 20241022 Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude 3.5 Sonnet Latest Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude 3.7 Sonnet 20250219 Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude 3.7 Sonnet Latest Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude Haiku 4 Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude Haiku 4 Subscription Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude Haiku 4.5 Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude Haiku 4.5 Subscription Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude Haiku 4.5 20251001 Anthropic number 1 0…1 step 0.01
Not when thinking.type = "enabled" or temperature ≠ null
Claude Haiku 4.5 20251001 Subscription Anthropic number 1 0…1 step 0.01
Not when thinking.type = "enabled" or temperature ≠ null
Claude Opus 4 Subscription Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude Opus 4 20250514 Anthropic number 1 0…1 step 0.01
Not when thinking.type = "enabled"
Claude Opus 4 20250514 Subscription Anthropic number 1 0…1 step 0.01
Not when thinking.type = "enabled"
Claude Opus 4.1 20250805 Anthropic number 1 0…1 step 0.01
Not when thinking.type = "enabled" or temperature ≠ null
Claude Opus 4.1 20250805 Subscription Anthropic number 1 0…1 step 0.01
Not when thinking.type = "enabled" or temperature ≠ null
Claude Opus 4.5 20251101 Anthropic number 1 0…1 step 0.01
Not when thinking.type = "enabled" or temperature ≠ null
Claude Opus 4.5 20251101 Subscription Anthropic number 1 0…1 step 0.01
Not when thinking.type = "enabled" or temperature ≠ null
Claude Opus 4.6 Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"enabled", "adaptive"} or temperature ≠ null
Claude Opus 4.6 Subscription Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"enabled", "adaptive"} or temperature ≠ null
Claude Sonnet 4 Subscription Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude Sonnet 4 20250514 Anthropic number 1 0…1 step 0.01
Not when thinking.type = "enabled"
Claude Sonnet 4 20250514 Subscription Anthropic number 1 0…1 step 0.01
Not when thinking.type = "enabled"
Claude Sonnet 4.5 Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude Sonnet 4.5 Subscription Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"adaptive", "enabled"} or temperature ≠ 1
Claude Sonnet 4.5 20250929 Anthropic number 1 0…1 step 0.01
Not when thinking.type = "enabled" or temperature ≠ null
Claude Sonnet 4.5 20250929 Subscription Anthropic number 1 0…1 step 0.01
Not when thinking.type = "enabled" or temperature ≠ null
Claude Sonnet 4.6 Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"enabled", "adaptive"} or temperature ≠ null
Claude Sonnet 4.6 Subscription Anthropic number 1 0…1 step 0.01
Not when thinking.type ∈ {"enabled", "adaptive"} or temperature ≠ null
Deepseek Chat DeepSeek number 1 0…1 step 0.01
Not when thinking.type = "enabled"
Deepseek Reasoner DeepSeek number 1 0…1 step 0.01
Not when thinking.type = "enabled"
Deepseek V4 Flash DeepSeek number 1 0…1 step 0.01
Not when thinking.type = "enabled"
Deepseek V4 Pro DeepSeek number 1 0…1 step 0.01
Not when thinking.type = "enabled"
Llama 3.3 70B Instruct Meta number
Llama 3.3 8B Instruct Meta number
Llama 4 Maverick 17B 128E Instruct FP8 Meta number
Llama 4 Scout 17B 16E Instruct FP8 Meta number
MiniMax M2 MiniMax number 0.95 0.01…1 step 0.01
MiniMax M2 Subscription MiniMax number 0.95 0.01…1 step 0.01
MiniMax M2.1 MiniMax number 0.95 0.01…1 step 0.01
MiniMax M2.1 Subscription MiniMax number 0.95 0.01…1 step 0.01
MiniMax M2.1 Highspeed MiniMax number 0.95 0.01…1 step 0.01
MiniMax M2.1 Highspeed Subscription MiniMax number 0.95 0.01…1 step 0.01
MiniMax M2.5 MiniMax number 0.95 0.01…1 step 0.01
MiniMax M2.5 Subscription MiniMax number 0.95 0.01…1 step 0.01
MiniMax M2.5 Highspeed MiniMax number 0.95 0.01…1 step 0.01
MiniMax M2.5 Highspeed Subscription MiniMax number 0.95 0.01…1 step 0.01
MiniMax M2.7 MiniMax number 0.95 0.01…1 step 0.01
MiniMax M2.7 Subscription MiniMax number 0.95 0.01…1 step 0.01
MiniMax M2.7 Highspeed MiniMax number 0.95 0.01…1 step 0.01
MiniMax M2.7 Highspeed Subscription MiniMax number 0.95 0.01…1 step 0.01
Minimax M3 MiniMax number 0.95 0.01…1 step 0.01
MiniMax M3 Subscription MiniMax number 0.95 0.01…1 step 0.01
Codestral Latest Mistral number 1 0…1 step 0.01
Devstral 2512 Mistral number 1 0…1 step 0.01
Devstral Latest Mistral number 1 0…1 step 0.01
Magistral Medium Latest Mistral number 1 0…1 step 0.01
Magistral Small Latest Mistral number 1 0…1 step 0.01
Ministral 14b Latest Mistral number 1 0…1 step 0.01
Ministral 3b Latest Mistral number 1 0…1 step 0.01
Ministral 8b Latest Mistral number 1 0…1 step 0.01
Mistral Large Latest Mistral number 1 0…1 step 0.01
Mistral Medium 3.5 Mistral number 1 0…1 step 0.01
Mistral Medium Latest Mistral number 1 0…1 step 0.01
Mistral Small Latest Mistral number 1 0…1 step 0.01
Open Mistral Nemo Mistral number 1 0…1 step 0.01
Moonshot v1 128K Moonshot AI number 1 0…1 step 0.01
Moonshot v1 32K Moonshot AI number 1 0…1 step 0.01
Moonshot v1 8K Moonshot AI number 1 0…1 step 0.01
Llama 3.1 Nemoguard 8b Topic Control Nvidia number 1 −∞…1
Llama 3.1 Nemotron Nano 8b V1 Nvidia number 0.95 −∞…1
Llama 3.1 Nemotron Ultra 253b V1 Nvidia number 0.95 −∞…1
Llama 3.3 Nemotron Super 49b V1 Nvidia number 0.95 −∞…1
Llama 3.3 Nemotron Super 49b V1.5 Nvidia number 0.95 −∞…1
Nemotron 3 Nano 30b A3b Nvidia number 1 −∞…1
Nemotron 3 Super 120b A12b Nvidia number 0.95 −∞…1
Nemotron 3 Ultra Subscription Nvidia number 0.95 −∞…1
Nemotron 3 Ultra 550b A55b Nvidia number 0.95 −∞…1
Nemotron Content Safety Reasoning 4b Nvidia number 1 −∞…1
Nemotron Mini 4b Instruct Nvidia number 0.7 −∞…1
Riva Translate 4b Instruct V1.1 Nvidia number 0.9 −∞…1
Usdcode Llama 3.1 70b Instruct Nvidia number 1 −∞…1
Chatgpt 4o Latest OpenAI number 1 0…1 step 0.01
Gpt 3.5 Turbo OpenAI number 1 0…1 step 0.01
Gpt 4 Turbo OpenAI number 1 0…1 step 0.01
Gpt 4 Turbo 2024-04-09 OpenAI number 1 0…1 step 0.01
Gpt 4.1 OpenAI number 1 0…1 step 0.01
Gpt 4.1 Mini OpenAI number 1 0…1 step 0.01
Gpt 4.1 Nano OpenAI number 1 0…1 step 0.01
Gpt 4o 2024-11-20 OpenAI number 1 0…1 step 0.01
GPT-4o OpenAI number 1 0…1 step 0.01
GPT-4o mini OpenAI number 1 0…1 step 0.01
Sonar Perplexity number 0…1 step 0.01
Sonar Deep Research Perplexity number 0…1 step 0.01
Sonar Pro Perplexity number 0…1 step 0.01
Sonar Reasoning Pro Perplexity number 0…1 step 0.01
Grok 4.20 0309 Non Reasoning xAI number 1 0…1 step 0.01
Grok 4.20 0309 Reasoning xAI number 1 0…1 step 0.01
Grok 4.20 Multi Agent 0309 xAI number 0.95 0…1 step 0.01
Grok 4.3 xAI number 1 0…1 step 0.01
Grok Build 0.1 xAI number 1 0…1 step 0.01
Mimo V2.5 Xiaomi number 0.95 0…1 step 0.01
Not when thinking.type = "enabled"
Mimo V2.5 Subscription Xiaomi number 0.95 0…1 step 0.01
Not when thinking.type = "enabled"
Mimo V2.5 Pro Xiaomi number 0.95 0…1 step 0.01
Not when thinking.type = "enabled"
GLM-4.5 Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-4.5 Subscription Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-4.5-Air Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-4.5-Air Subscription Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-4.5-AirX Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-4.5-Flash Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-4.5-X Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-4.6 Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-4.6 Subscription Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-4.7 Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-4.7 Subscription Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-4.7-Flash Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-4.7-FlashX Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-5 Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-5 Subscription Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-5-Turbo Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-5-Turbo Subscription Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-5.1 Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false
GLM-5.1 Subscription Z.ai number 0.95 0.01…1 step 0.01
Not when do_sample = false

Models without top_p documented yet

These models don't list top_p 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.

Related sampling 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/params/gpt-5.5.json
curl https://modelparams.dev/api/v1/params/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