GPT-5.2 Thinking
OpenAI's advanced reasoning model. Excels at complex structured work like coding, analyzing long documents, math, and planning. Beats or ties top industry professionals on 70.9% of GDPval knowledge work tasks.
Pricing
Ratings
Pros
- Best reasoning model from OpenAI
- Edges out Gemini 3 and Claude Opus 4.5 on most tests
- Performs at/above human expert level on GDPval
- Excellent for coding, math, and document analysis
- State-of-the-art on SWE-Bench Pro
Cons
- Expensive ($200/mo for Pro subscription)
- Slower than Instant variant
- Requires Pro subscription for full access
- Writing can feel robotic
Benchmark Results
Best For
Complex reasoning, software engineering, research, math proofs
Quick Info
- Provider
- OpenAI
- Version
- 5.2
- Released
- Dec 2025
- Context
- 128K tokens
Features
Categories
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