GPT OSS 120B

Aug 2025
GPT OSS 120B
Compare in
on
$0.092per task?
$0.03 / $0.15per 1M in / out?
243 tok/sfirst token in 0.8 s?
131Kcontext

Rankingat high effort?

Full ranking →
1Gemini 3 Flash Preview90.82DeepSeek V3.2 Speciale89.63GPT-5.289.43GLM 4.789.45GPT OSS 120B87.86Opus 4.587.1

Strong at

A
Instructions#54 of 245
B
Tool calling#96 of 242Reasoning#126 of 334Science#124 of 312
C
Coding#75 of 132Agents & work tasks#114 of 175Long context#175 of 273Knowledge#205 of 318

Run it yourself

estimate
Fits on✗ 8 GB (phone, laptop)✗ 16 GB✗ 24 GB GPU✗ 48 GB GPU✓ 80 GB GPU · compressed
LicenceApache-2.0free for commercial use

Benchmarks

in Coding
Terminal-Bench 2.126.2#105
Terminal-Bench 4.00#75
Terminal-Bench Hard (version unstated)23.5#81
SciCode34#117
LiveCodeBench · AA archived87.8#5
Aider Polyglot · two attempts41.8#7
SWE-rebench · all · 2025-12-01 to 2026-01-0137#1
SWE-rebench · Go · 2025-12-01 to 2026-01-010#1
SWE-rebench · Java · 2025-12-01 to 2026-01-010#1
SWE-rebench · Rust · 2025-12-01 to 2026-01-010#1
SWE-rebench · Python · 2025-12-01 to 2026-01-0137#1
SWE-rebench · TypeScript · 2025-12-01 to 2026-01-010#1

FAQ

How much does GPT OSS 120B cost?›

$0.03 per 1M input tokens and $0.15 per 1M output tokens (cheapest host: Near AI). A typical benchmark task costs about $0.092 at high effort.

Is GPT OSS 120B free to use?›

There is no free API; the cheapest paid price is $0.03 per 1M input tokens. The weights are open, so you can run it yourself.

How good is GPT OSS 120B, and what is it best at?›

#126 of 334 in Chat & Knowledge, #75 of 132 in Coding, #130 of 133 in Agents & Tool Use, #144 of 195 in Writing & Language, #91 of 133 in Vision & Documents. Strongest at: Instructions.

Is GPT OSS 120B better than GLM 4.7?›

On LiveCodeBench · AA archived, GPT OSS 120B scores 87.8 vs 89.4 — lower.

How can I use GPT OSS 120B?›

Through the API of AWS Bedrock, AkashML, Amazon Bedrock, Azure AI Foundry, BaseTen and 18 more.

What is the context window of GPT OSS 120B?›

131K tokens.

When was GPT OSS 120B released? Is there a newer version?›

Released 2025-08-05. It is the current version in its line.

Is GPT OSS 120B open source?›

Yes, the weights are open (Apache-2.0 licence).

Can I run GPT OSS 120B locally?›

The weights are open and can be self-hosted; hardware needs are not confirmed yet.

Can GPT OSS 120B read images?›

No, it accepts text only.

What is GPT OSS 120B?›

GPT OSS 120B is an open-weights language model from OpenAI, released Aug 2025.

What are the best alternatives to GPT OSS 120B?›

GPT-5 Mini (cheaper), Gemini 3 Flash Preview (better), MiniMax M2 (open weights).