All OpenAI models

gpt-oss-120b

OpenAI · released August 2025

gpt-oss-120b is a OpenAI model with a 131K token context window — about 190 pages of text. It reads Text and replies in Text. It can show its reasoning before it answers.

$0.043

input / 1M tokens

$0.196

output / 1M tokens

131K

context — about 190 pages

0.04¢

a client proposal

Pricing

Input
$0.043 per million tokens
Output
$0.196 per million tokens

Billed from your Alyph wallet. Prices can change when the provider changes theirs — last checked August 9, 2026.

The numbers

Provider
OpenAI
Released
August 2025 (2025-08-05)
Context window
131K tokens — about 190 pages
Max output
131K tokens per reply
Input
Text
Output
Text
Reasoning
Shows its thinking before answering
Knowledge cutoff
2024-06-30

Cost vs Token Amount

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gpt-oss-120b

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What a task costs

2K tokens in · 500 tokens out.

gpt-oss-120b

OpenAI

0.02¢

for this task

47% input · 53% output

Full pricing →

Your $5 welcome credit covers about 27,344 of these.

Compare gpt-oss-120b

Closest in price on a typical task:

gpt-oss-120b vs Llama 3.1 8B Instruct →gpt-oss-120b vs Mistral Small 3 →gpt-oss-120b vs Gemma 3 4B →gpt-oss-120b vs Granite 4.1 8B →Any other combination →

Questions, answered

How much does gpt-oss-120b cost on Alyph?

gpt-oss-120b costs $0.043 per million input tokens and $0.196 per million output tokens on Alyph. A typical task — 5K tokens in, 800 out — works out to about 0.04¢. Billed from your Alyph wallet, with hard spending limits. Prices can change when the provider changes theirs; this page was last checked on August 9, 2026.

What is gpt-oss-120b's context window?

131K tokens — about 190 pages. Replies can be up to 131K tokens long.

Can gpt-oss-120b read images and files?

gpt-oss-120b is text-only. The canvas still serializes uploads into plain text, so you can work with files — but it cannot see images.

Does gpt-oss-120b show its reasoning?

Yes. gpt-oss-120b can expose its thinking before the final answer, so you can watch how it got there.

Test gpt-oss-120b against Llama 3.1 8B Instruct

One prompt, both models at the same time, the better answer wins. Free to start, with $5 of credit.

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