openai

GPT OSS 20B

Input / 1M: $0.0315
Output / 1M: $0.147
Context: 131,072 tokens
Catalog: Gateway catalog

About this model

A compact, open-weight language model optimized for low-latency and resource-constrained environments, including local and edge deployments. MiniRouter supports text input only.

text inputtext outputlanguageProvider fallback

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Thinking guide →

1const response = await fetch('https://api.minirouter.sh/v1/chat/completions', {2  method: 'POST',3  headers: {4    Authorization: `Bearer ${process.env.MINIROUTER_KEY}`,5    'Content-Type': 'application/json',6  },7  body: JSON.stringify({8    model: 'openai/gpt-oss-20b',9    messages: [{ role: 'user', content: 'Why is the sky blue?' }],10    max_tokens: 1024,11  }),12})13 14const data = await response.json()15console.log(data.choices[0].message.content)

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Overview

Model type: language
Context window: 131,072
Maximum output: 8,192
Input / 1M tokens: $0.0315
Output / 1M tokens: $0.147
Released: 2025-08-05

Prices include the MiniRouter fee. Compatibility snapshot: 2026-08-06. Input: text. Output: text.

Endpoints

/v1/chat/completions/v1/messages/v1/responses

Platform-funded routing only. Caller BYOK credentials and OIDC-based upstream authentication are intentionally excluded; authenticate with a MiniRouter bearer key.

Captured parameters: max_tokens, temperature, stop, tools, tool_choice, reasoning, include_reasoning, response_format, structured_outputs.

Structured output: JSON Schema and JSON mode enforced on verified providers. How it works

API

Use the setup panel above to switch between Chat Completions, Messages, and client configurations. Every snippet keeps the model ID unchanged.

Base URLhttps://api.minirouter.sh/v1

Model IDopenai/gpt-oss-20b

Providers

MiniRouter selects from the configured routes below. Priority is the catalog order, not a latency or availability score.

Provider	Priority	Input / 1M	Output / 1M	Parameters	Access
vercel	1	$0.0315	$0.147	max_tokens, temperature, stop, tools, tool_choice, reasoning, include_reasoning, response_format, structured_outputs	MiniRouter balance
darkbloom	102	$0.021	$0.105	max_tokens, temperature, stop, tools, tool_choice, reasoning, include_reasoning, response_format, structured_outputs	MiniRouter balance