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openai/gpt-oss-20b

Open weights
GPT OSS 20B

Open GPT reasoning model for self-hosted agents and controllable deployments

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Cache key/models/openai--gpt-oss-20b
Cache-Controlpublic, max-age=300, stale-while-revalidate=3600
Cache-Tagcatalogmodel:openai--gpt-oss-20b

Workers Cache derives the key from this path/query, plus the Worker entrypoint and current Worker version.

export const Route = createFileRoute('/models/$modelSlug')({
  headers: () => ({
    'Cache-Control': 'public, max-age=300, stale-while-revalidate=3600',
    'Cache-Tag': 'catalog,model:openai--gpt-oss-20b',
  }),
})

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Gpt OssReasoningTool callingStructured outputTemperature control
Released
Aug 5, 2025
Last updated
Aug 5, 2025
Context window
131.1K tokens
Max output
32.8K tokens
Open weights
Yes
Family
Gpt Oss

Starts at

Free

per 1M input tokens

Output

Free

Sellers

16

No cart or checkout in this MVP — pick a provider below and open their docs when you're ready to use it.

Capabilities & modalities
Reasoning
Tool calling
Structured output
Attachments
InputText
OutputText
Provider shelf
Where to get GPT OSS 20B

Sorted by lowest input price

ProviderInput / 1MOutput / 1MContext

LMStudio

openai/gpt-oss-20b

FreeFree131.1KDocs

Nvidia

openai/gpt-oss-20b

FreeFree131.1KDocs

OpenRouter

openai/gpt-oss-20b

$0.029$0.14131.1KDocs

Deep Infra

openai/gpt-oss-20b

$0.03$0.14131.1KDocs

IO.NET

openai/gpt-oss-20b

$0.03$0.1464KDocs

Kilo Gateway

openai/gpt-oss-20b

$0.03$0.14131.1KDocs

NovitaAI

openai/gpt-oss-20b

$0.04$0.15131.1KDocs

SiliconFlow

openai/gpt-oss-20b

$0.04$0.18131KDocs

NanoGPT

openai/gpt-oss-20b

$0.04$0.15128KDocs

Vercel AI Gateway

openai/gpt-oss-20b

$0.05$0.2131.1KDocs

Weights & Biases

openai/gpt-oss-20b

$0.05$0.2131.1KDocs

Together AI

openai/gpt-oss-20b

$0.05$0.2131.1KDocs

FastRouter

openai/gpt-oss-20b

$0.05$0.2131.1KDocs

Amazon Bedrock

openai.gpt-oss-20b

$0.07$0.3128KDocs

Groq

openai/gpt-oss-20b

$0.075$0.3131.1KDocs

STACKIT

openai/gpt-oss-20b

$0.18$0.29131.1KDocs
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