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Grok 4.5 vs GPT OSS 20B

GPT OSS 20B is cheaper on output tokens, while Grok 4.5 offers a larger context window. Choose Grok 4.5 or GPT OSS 20B based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecGrok 4.5GPT OSS 20B
ProviderImpossiblImpossibl
Input / 1M tokens$2.00$0.08
Output / 1M tokens$6.00$0.30
Context window500K131K
Parameters——
Open weightsNoYes
ReleasedJul 2026Aug 2025

FAQ

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