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OpenAI · open weights

gpt-oss-120b API pricing by provider

gpt-oss-120b is available from 22 providers. The cheapest is Near AI at $0.03 input / $0.15 output per 1M tokens (FP4). The priciest host, Cerebras, charges 7.5x the cheapest.

Prices from the OpenRouter API, retrieved October 26, 2026. Weights: openai/gpt-oss-120b.

ProviderPrecisionInput / 1MOutput / 1MDocument Q&A / monthContextMax output
Near AIfp4$0.03$0.15$16.50131K118K
Veniceint4$0.03$0.15$16.50128K33K
CoreWeavefp4$0.03$0.17$17.10131K118K
DekaLLMbf16$0.03$0.18$17.40131K118K
AkashMLbf16$0.03$0.187$17.61131K118K
DeepInfrabf16$0.037$0.17$19.90131K118K
Crusoebf16$0.05$0.25$27.50131K118K
Mancer 2fp8$0.05$0.25$27.50131K118K
Novitafp4$0.05$0.25$27.50131K33K
Sail Researchfp4$0.06$0.40$36.00131K118K
DigitalOcean—$0.06$0.42$36.60128K4K
BaseTenfp4$0.10$0.50$55.00128K115K
Amazon Bedrock—$0.15$0.60$78.00131K118K
Nebiusfp4$0.15$0.60$78.00131K118K
SiliconFlowfp8$0.15$0.60$78.00131K8K
Phala—$0.15$0.60$78.00131K33K
Together—$0.15$0.60$78.00131K118K
Groq—$0.15$0.60$78.00131K66K
Parasailfp4$0.10$0.75$62.50131K118K
Mara—$0.15$0.75$82.50131K118K
SambaNova—$0.14$0.95$84.50131K118K
Cerebrasfp16$0.35$0.75$162.50131K41K

Sorted by blended price (3 input : 1 output). Document Q&A assumes 50,000 questions a month with 8,000 input and 600 output tokens each. Precision is reported by the provider; “—” means not disclosed.

Frequently asked questions

What is the cheapest gpt-oss-120b API provider?
Near AI is the cheapest healthy provider we track at $0.03 per 1M input tokens and $0.15 per 1M output tokens.
How much does gpt-oss-120b cost?
Across 22 providers, input prices range from $0.03 to $0.35 per 1M tokens and output prices from $0.15 to $0.95.
What is gpt-oss-120b’s context window?
gpt-oss-120b supports up to 131K tokens, but some providers serve a smaller context window — check the table before choosing.

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