Build advanced reasoning agents with GPT-4.1 nano, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.10/1M input and $0.40/1M output tokens, native tool calling support. Access GPT-4.1 nano via the Pioneer API with up to 33K output tokens.
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GPT-4.1 nano by Pioneer costs $0.10 per 1M input tokens and $0.40 per 1M output tokens. Cached reads cost $0.05 per 1M tokens. Cache writes cost $0.10 per 1M tokens.