Which is cheaper, Gpt Oss 20b or GPT-5?
Gpt Oss 20b costs $0.05/M input; GPT-5 costs $1.25/M input. Price spread matters at billion-token scale.
Gateway catalog snapshot.
Gpt Oss 20b is cheaper at $0.05/M input vs $1.25/M input for GPT-5. Compare context, hosts, and o10 routing bands.
Last updated: 2026-06-27. Full catalog. Reference prices are dated snapshots. Compare total cost and measured task quality before choosing a route.
Gpt Oss 20b vs GPT-5. Price, context, routing
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AnswersSelf-contained
How do Gpt Oss 20b and GPT-5 context windows compare?
Gpt Oss 20b: 131,072 tokens. GPT-5: 400,000 tokens.
01Deep dive
Comparison summary
Gpt Oss 20b is cheaper at $0.05/M input vs $1.25/M input for GPT-5. Compare context, hosts, and o10 routing bands.
Gpt Oss 20b is cheaper at $0.05/M input vs $1.25/M input for GPT-5. Compare context, hosts, and o10 routing bands.
SourceMethodology
o10 gateway + fulfillment catalog snapshot.
FAQFrequently asked questions
Common questions
Which is cheaper, Gpt Oss 20b or GPT-5?
Gpt Oss 20b at $0.05/M input vs $1.25/M for GPT-5.
Can you run both on the same hosts?
Gpt Oss 20b: OpenRouter, NVIDIA NIM. GPT-5: OpenRouter.