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OpenAI model

gpt-oss-20b

API pricing per million tokens

gpt-oss-20b Open weightsChecked 7h ago
Cost calculator Compare
Input
$0.018
per 1M, Darkbloom (fp8)
Output
$0.09
per 1M tokens
Cached input
n/a
no batch tier listed
Context
131K
33K max output

Where to buy it (12)

  • Darkbloomfp8, fp8$0.018 / $0.09$0.036 blended
  • AkashMLfp4, fp4$0.02 / $0.1$0.04 blended
  • CoreWeavefp4, fp4$0.03 / $0.13cached $0.03
  • DekaLLMbf16, bf16$0.029 / $0.14$0.057 blended
  • DeepInfrabf16, bf16$0.03 / $0.14$0.058 blended
  • Parasailfp4, fp4$0.03 / $0.15cached $0.02
  • Novita AIfp4, fp4$0.04 / $0.15$0.068 blended
  • SiliconFlowfp8, fp8$0.04 / $0.18$0.075 blended
  • AWS Bedrockdefault region$0.07 / $0.15$0.09 blended
  • AWS Bedrockeu-west-1$0.07 / $0.15$0.09 blended
  • Google Vertex AIus-central1$0.07 / $0.25$0.115 blended
  • Groqdefault region$0.075 / $0.3cached $0.037

Through a gateway

Your own numbers

100M input and 20M output tokens a month: $3.60 direct.

Related models

About gpt-oss-20b

gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license.

Takes text in and returns text. First listed Sep 23, 2026. Blended price $0.036 per 1M tokens at 3 input to 1 output.

OpenRouter listing OpenAI pricing page
Across fru.devCompany profile4 acquisitionsPay schedule64 releases, latest 2026-09-229 conferences

Questions

How much does gpt-oss-20b cost?

$0.018 per million input tokens and $0.09 per million output tokens.

What is the context window of gpt-oss-20b?

131K tokens, with up to 33K tokens of output.

Where is gpt-oss-20b cheapest?

Of 12 routes tracked, Darkbloom is cheapest at $0.018 input and $0.09 output per million tokens.

List prices from providers' pages on the date shown; your contract may differ. Logos via logo.dev; trademarks belong to their owners.

Weekly: LLM API list prices that changed, Thursday mornings.