How much does gpt-oss-20b cost per token?

gpt-oss-20b is priced at $0.029 per million input tokens and $0.14 per million output tokens, per OpenRouter as of Jul 8, 2026.

What is gpt-oss-20b's context window?

gpt-oss-20b supports a context window of up to 131.1K tokens, per OpenAI.

How widely used is gpt-oss-20b?

gpt-oss-20b accounts for about 0.3% of tracked OpenRouter coding-token volume as of Jul 7, 2026.

What are the alternatives to gpt-oss-20b?

By OpenRouter usage, comparable models include Gemini 3.1 Pro Preview, Claude Opus 4.6, and Kimi K2.7 Code. Side-by-side comparisons are linked in the alternatives table.

ModelsOpenAI

gpt-oss-20b

Name: gpt-oss-20b
Author: OpenAI

openrouter hugging face price docs

Context

131.1K

tokens

Released

Aug 5, 2025

on OpenRouter

Usage rank

#32

of 41 tracked models

Token share

0.3%

OpenRouter · Jul 7, 2026

Pricing

Price per million tokens

Input $/MTok

$0.029

OpenRouter · Jul 8, 2026

Output $/MTok

$0.14

OpenRouter · Jul 8, 2026

Current gpt-oss-20b prices per million tokens across tracked sources.
Source	Tracked slug	In $/MTok	Out $/MTok	Cache read	Cache write	Context	Effective	Last Δ (in)
OpenRouter	openai/gpt-oss-20b	$0.029	$0.14	—	—	131.1K	Jul 8, 2026	—
models.dev	clarifai/openai/chat-completion/models/gpt-oss-20b	$0.045	$0.18	—	—	131.1K	Jul 8, 2026	10%

latest tracked price per source · Δ = most recent input-price move within that source

2 sources tracking

Input $/MTok

Output $/MTok

per-source step lines · $/MTok

history since Jul 8, 2026

Specs

Context & availability

gpt-oss-20b specifications.
Provider	OpenAI
Context window	131.1K tokens
Listed on OpenRouter	Aug 5, 2025
Tracked price sources	models.dev · OpenRouter
Hugging Face	openai/gpt-oss-20b
OpenRouter slugs	openai/gpt-oss-20b · openai/gpt-oss-20b:free

source: OpenRouter model catalog + tracked price feeds

id: gpt-oss-20b

Usage

Share of OpenRouter tokens

90-day · to Jul 7, 2026

source: OpenRouter model rankings · share of tracked coding-token volume

0.3% on Jul 7, 2026

Benchmarks

Benchmark results

Benchmark scores for gpt-oss-20b.
Benchmark	Configuration	Score	Date	Source
AA Intelligence Index	openai/gpt-oss-20b:free	14.9index	—	or-embedded-aa
AA Coding Index	openai/gpt-oss-20b:free	20.7index	—	or-embedded-aa
AA Agentic Index	openai/gpt-oss-20b:free	3.1index	—	or-embedded-aa
AA Intelligence Index	openai/gpt-oss-20b	14.9index	—	or-embedded-aa
AA Coding Index	openai/gpt-oss-20b	20.7index	—	or-embedded-aa
AA Agentic Index	openai/gpt-oss-20b	3.1index	—	or-embedded-aa

scores as published by each benchmark; configurations differ — compare within a row's benchmark only

Alternatives

Similar models

Alternatives to gpt-oss-20b by OpenRouter usage-rank proximity.
#	Model	Tokens/day	7d Δ	Head-to-head
37	Gemini 3.1 Pro PreviewGoogle	30B	8.7%	vs gpt-oss-20b
36	Claude Opus 4.6Anthropic	32.8B	5.3%	vs gpt-oss-20b
40	Kimi K2.7 CodeMoonshot AI	24B	17.8%	vs gpt-oss-20b
41	GPT-5 MiniOpenAI	23.2B	3.3%	vs gpt-oss-20b

ranked by OpenRouter usage-rank proximity

snapshot Jul 7, 2026

FAQ

gpt-oss-20b FAQ

How much does gpt-oss-20b cost per token?: gpt-oss-20b is priced at $0.029 per million input tokens and $0.14 per million output tokens, per OpenRouter as of Jul 8, 2026.
What is gpt-oss-20b's context window?: gpt-oss-20b supports a context window of up to 131.1K tokens, per OpenAI.
How widely used is gpt-oss-20b?: gpt-oss-20b accounts for about 0.3% of tracked OpenRouter coding-token volume as of Jul 7, 2026.
What are the alternatives to gpt-oss-20b?: By OpenRouter usage, comparable models include Gemini 3.1 Pro Preview, Claude Opus 4.6, and Kimi K2.7 Code. Side-by-side comparisons are linked in the alternatives table.

Alerts

Track gpt-oss-20b

Email me when gpt-oss-20b's price moves or it gets deprecated.