Claude Opus 4.6 vs GPT-5.2
Claude Opus 4.6 and GPT-5.2 are closely matched at 45.0 and 41.4 on the LLM Stats Score. GPT-5.2 is 2.1x cheaper per token.
Anthropic · OpenAI · Updated for 2026
Which is better?
Claude Opus 4.6 and GPT-5.2 are closely matched on the overall LLM Stats Score at 45.0 and 41.4.
In the 13 individual benchmarks reported for both models, Claude Opus 4.6 wins 9; this is a narrower head-to-head signal than the composite indexes.
On price, GPT-5.2 is roughly 2.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Claude Opus 4.6 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Claude Opus 4.6
- your work emphasizes reasoning and agents — it leads those capability indexes
- you value its reported benchmark strengths — it wins 9 of 13 exact shared results
- you process long inputs — it offers a 1,000,000 token context window
- you want the most recent training data — it shipped Feb 2026
Choose GPT-5.2
- cost matters — it's about 2.1x cheaper per token
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
1 more shared indexes
Individual benchmarks
27 reported for Claude Opus 4.6 · 24 for GPT-5.2
Claude Opus 4.6 outperforms in 9 benchmarks (ARC-AGI v2, BrowseComp, Humanity's Last Exam, LiveBench, MCP Atlas, MMMLU, SWE-Bench Verified, Tau2 Retail, Tau2 Telecom), while GPT-5.2 is better at 4 benchmarks (AIME 2025, CharXiv-R, GPQA, MMMU-Pro).
Claude Opus 4.6 shows notably better performance in the majority of benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Claude Opus 4.6 ($5.00/1M tokens) is 2.9x more expensive than GPT-5.2 ($1.75/1M tokens).
For output processing, Claude Opus 4.6 ($25.00/1M tokens) is 1.8x more expensive than GPT-5.2 ($14.00/1M tokens).
In conclusion, Claude Opus 4.6 is more expensive than GPT-5.2.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Claude Opus 4.6 accepts 1,000,000 input tokens compared to GPT-5.2's 400,000 tokens. Both models can generate responses up to 128,000 tokens.
Input capabilities
Documented input modalities across available providers
Both Claude Opus 4.6 and GPT-5.2 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude Opus 4.6
GPT-5.2
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
Claude Opus 4.6 was released on 2026-02-05, while GPT-5.2 was released on 2025-12-11.
Claude Opus 4.6 is 2 months newer than GPT-5.2.
Feb 5, 2026
7 months ago
1mo newerDec 11, 2025
9 months ago
Knowledge Cutoff
When training data ends
GPT-5.2 has a documented knowledge cutoff of 2025-08-25, while Claude Opus 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 Opus 4.6's cutoff date.
—
Aug 2025
Provider Availability
Claude Opus 4.6 is available from Anthropic. GPT-5.2 is available from OpenAI.
Claude Opus 4.6
GPT-5.2
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude Opus 4.6 and GPT-5.2 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude Opus 4.6 vs GPT-5.2.