GPT OSS 20B

Aug 2025
GPT OSS 20B
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$0.011per task?
$0.018 / $0.09per 1M in / out?
246 tok/sfirst token in 0.7 s?
131Kcontext

Rankingat high effort?

Alternatives?

Run it yourself

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

FAQ

How much does GPT OSS 20B cost?›

$0.018 per 1M input tokens and $0.09 per 1M output tokens (cheapest host: Darkbloom). A typical benchmark task costs about $0.011 at high effort.

Is GPT OSS 20B free to use?›

There is no free API; the cheapest paid price is $0.018 per 1M input tokens. The weights are open, so you can run it yourself.

How good is GPT OSS 20B, and what is it best at?›

#174 of 334 in Chat & Knowledge, #75 of 132 in Coding, #131 of 133 in Agents & Tool Use, #165 of 195 in Writing & Language, #106 of 133 in Vision & Documents.

Is GPT OSS 20B better than Sarvam 105B?›

On Humanity's Last Exam, GPT OSS 20B scores 11 vs 11 — about the same.

How can I use GPT OSS 20B?›

Through the API of AWS Bedrock, AkashML, Amazon Bedrock, CoreWeave, Darkbloom and 7 more.

What is the context window of GPT OSS 20B?›

131K tokens.

When was GPT OSS 20B released? Is there a newer version?›

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

Is GPT OSS 20B open source?›

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

Can I run GPT OSS 20B locally?›

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

Can GPT OSS 20B read images?›

No, it accepts text only.

What is GPT OSS 20B?›

GPT OSS 20B is an open-weights language model from OpenAI, released Aug 2025.

What are the best alternatives to GPT OSS 20B?›

GPT-6 Luna (cheaper), Qwen3.8 27B (open weights).