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A faster, more affordable reasoning model from OpenAI that brings chain-of-thought capabilities to everyday tasks. Offers configurable reasoning effort levels (low, medium, high) to balance speed and depth. Ideal for developers who need reasoning capabilities without the latency and cost of full o1.
Released
January 31, 2025
Parameters
Unknown
Context
200K
Pricing
Paid
Last updated: March 15, 2026
Benchmark scores may vary based on evaluation methodology and conditions.