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A premium version of o1 designed to think longer and provide the most reliable responses for the hardest problems. Uses additional compute to reduce errors on complex math, science, and coding challenges. Available to ChatGPT Pro subscribers for tasks demanding the highest accuracy.
Released
December 17, 2024
Parameters
Unknown
Context
200K
Pricing
Paid
Last updated: March 15, 2026
Benchmark scores may vary based on evaluation methodology and conditions.