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Owl Alpha vs GPT-5.3 Codex

Owl Alpha is cheaper on output tokens, while Owl Alpha offers a larger context window. Choose Owl Alpha or GPT-5.3 Codex based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecOwl AlphaGPT-5.3 Codex
ProviderOpenRouterOpenRouter
Input / 1M tokens$0.00$1.75
Output / 1M tokens$0.00$14.00
Context window1M400K
Parameters
Open weightsNoNo
ReleasedApr 2026Feb 2026

FAQ

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