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Mistral Small 31 24b Instruct vs GPT OSS 20B

Both have similar output pricing, while GPT OSS 20B offers a larger context window. Choose Mistral Small 31 24b Instruct or GPT OSS 20B based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecMistral Small 31 24b InstructGPT OSS 20B
ProviderNanoGPTNeon
Input / 1M tokens$0.10$0.07
Output / 1M tokens$0.30$0.30
Context window128K131K
Parameters—21B
Open weightsNoYes
ReleasedApr 2025Aug 2025
LMArena (Chatbot Arena) Elo score1277—
LMArena Vision Elo score1136—
Mistral Small 31 24b Instruct details →GPT OSS 20B details →

FAQ

Is Mistral Small 31 24b Instruct or GPT OSS 20B cheaper?

Mistral Small 31 24b Instruct and GPT OSS 20B have comparable output pricing.

Which has the larger context window, Mistral Small 31 24b Instruct or GPT OSS 20B?

GPT OSS 20B has the larger context window (131K tokens).

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.