Build advanced reasoning agents with GPT-5.5, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $4.55/1M input and $27.27/1M output tokens, native tool calling support. Access GPT-5.5 via the Poe API with up to 128K output tokens.
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GPT-5.5 by Poe costs $4.55 per 1M input tokens and $27.27 per 1M output tokens. Cached reads cost $0.45 per 1M tokens.