Which is cheaper, Gpt Oss 120b or Gpt 5.1 Codex Mini?
Gpt 5.1 Codex Mini costs $0.25/M input; Gpt Oss 120b costs $0.35/M input. Price spread matters at billion-token scale.
Gateway catalog snapshot.
Gpt 5.1 Codex Mini is cheaper at $0.25/M input vs $0.35/M input for Gpt Oss 120b. 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 120b vs Gpt 5.1 Codex Mini. Price, context, routing
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How do Gpt Oss 120b and Gpt 5.1 Codex Mini context windows compare?
Gpt Oss 120b: 131,072 tokens. Gpt 5.1 Codex Mini: 400,000 tokens.
01Deep dive
Comparison summary
Gpt 5.1 Codex Mini is cheaper at $0.25/M input vs $0.35/M input for Gpt Oss 120b. Compare context, hosts, and o10 routing bands.
Gpt 5.1 Codex Mini is cheaper at $0.25/M input vs $0.35/M input for Gpt Oss 120b. Compare context, hosts, and o10 routing bands.
SourceMethodology
o10 gateway + fulfillment catalog snapshot.
FAQFrequently asked questions
Common questions
Which is cheaper, Gpt Oss 120b or Gpt 5.1 Codex Mini?
Gpt 5.1 Codex Mini at $0.25/M input vs $0.35/M for Gpt Oss 120b.
Can you run both on the same hosts?
Gpt Oss 120b: OpenAI, SambaNova. Gpt 5.1 Codex Mini: OpenAI.