GPT-5.2 vs Claude Sonnet 4.6 Comparison
Comparing GPT-5.2 and Claude Sonnet 4.6 across benchmarks, pricing, and capabilities.
Performance Benchmarks
Comparative analysis across standard metrics
GPT-5.2 outperforms in 5 benchmarks (GPQA, MMMLU, MMMU-Pro, SWE-Bench Verified, Tau2 Telecom), while Claude Sonnet 4.6 is better at 5 benchmarks (ARC-AGI v2, BrowseComp, Humanity's Last Exam, MCP Atlas, Tau2 Retail).
Both models are evenly matched across the benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
Cost data unavailable.
Context Window
Maximum input and output token capacity
Only GPT-5.2 specifies input context (400,000 tokens). Only GPT-5.2 specifies output context (128,000 tokens).
Input Capabilities
Supported data types and modalities
Both GPT-5.2 and Claude Sonnet 4.6 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-5.2
Claude Sonnet 4.6
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
GPT-5.2 was released on 2025-12-11, while Claude Sonnet 4.6 was released on 2026-02-17.
Claude Sonnet 4.6 is 2 months newer than GPT-5.2.
Dec 11, 2025
3 months ago
Feb 17, 2026
4 weeks ago
2mo newerKnowledge Cutoff
When training data ends
GPT-5.2 has a documented knowledge cutoff of 2025-08-25, while Claude Sonnet 4.6's cutoff date is not specified.
We can confirm GPT-5.2's training data extends to 2025-08-25, but cannot make a direct comparison without Claude Sonnet 4.6's cutoff date.
Aug 2025
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Outputs Comparison
Key Takeaways
GPT-5.2
View detailsOpenAI
Claude Sonnet 4.6
View detailsAnthropic
Detailed Comparison
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