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Fireworks AI

gpt-oss-20b on Fireworks AI

GPT-OSS · OpenAI

ServerlessOpen Source

Pricing

TypePrice (per 1M)
Input tokens$0.07
Output tokens$0.30

Capabilities

VisionMultimodalReasoningFunction CallingTool UseJSON ModeCode Execution

About gpt-oss-20b

OpenAI open-weight model with 20 billion parameters. Lightweight, efficient text-only model with reasoning and function calling. Free for self-hosting. Released August 5, 2025.

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Model Specs

Released2025-08-05
Parameters20B
Context131072
ArchitectureDecoder Only
Knowledge cutoff2025-08

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