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GPT-5.4 vs GPT OSS 20B

GPT OSS 20B is cheaper on output tokens, while GPT-5.4 offers a larger context window. Choose GPT-5.4 or GPT OSS 20B based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecGPT-5.4GPT OSS 20B
ProviderCloudflare AI GatewayCloudflare AI Gateway
Input / 1M tokens$2.50$0.20
Output / 1M tokens$15.00$0.30
Context window1.1M128K
Parameters21B
Open weightsNoNo
ReleasedMar 2026Aug 2025

FAQ

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