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GPT-5.6 Sol (Official API) vs Claude Opus 5

GPT-5.6 Sol (Official API) is cheaper on output tokens, while Claude Opus 5 offers a larger context window. Choose GPT-5.6 Sol (Official API) or Claude Opus 5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecGPT-5.6 Sol (Official API)Claude Opus 5
ProviderInfer by Flow7Abacus
Input / 1M tokens$2.50$5.00
Output / 1M tokens$12.50$25.00
Context window272K1M
Parameters——
Open weightsNoNo
ReleasedJul 2026Jul 2026

FAQ

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