GPT-5.2 was released by OpenAI on December 11, 2025, as a flagship model in the GPT line.
GPT-5.2 Thinking beats or ties top industry professionals in 70.9% of GDPval work-task comparisons, according to expert judges, and fixes 80.0% of SWE-bench Verified software bugs versus 76.3% for GPT-5.1, at a 40% higher API price per token.
Compared with GPT-5.1 · the model it replaces
Fixes 8 in 10 real software bugs
SWE-bench Verified — fixing real bugs in real software projects; GPT-5.2 Thinking and GPT-5.1 Thinking, each at its maximum API effort
80.0%
▲ up from 76.3% for GPT-5.1 · +3.7 points
Costs developers 40% more per token than GPT-5.1
Price per 1M tokens — what developers pay, input / output
$1.75 / $14
was $1.25 / $10 · input and output both up 40%
Every Monday, only when something shipped: the AI models that came out, what each one changed, and which lines are due next.
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GPT-6.1 Sol is the current model in this line. The card shows how long it has been since the last release against the line's usual gap and its recent ones — the rhythm, not a date.
Latest: GPT-6.1 Sol · Sep 29, 2026
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