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o1 vs GPT-5.5-Pro

o1 is cheaper on output tokens, while GPT-5.5-Pro offers a larger context window. Choose o1 or GPT-5.5-Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Speco1GPT-5.5-Pro
ProviderPoePoe
Input / 1M tokens$14.00$27.27
Output / 1M tokens$54.00$163.64
Context window200K400K
Parameters
Open weightsNoNo
ReleasedDec 2024Apr 2026

FAQ

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