Claude Opus 5 vs GPT-5.2

Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.

Claude Opus 5 by Anthropic and GPT-5.2 by OpenAI are evenly matched across 8 benchmarks. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.

Category-by-Category Breakdown

Coding: In coding, Claude Opus 5 scores 1355 on Design Arena ELO compared to GPT-5.2's 1173, while Claude Opus 5 scores 1319 on Website Arena ELO compared to GPT-5.2's 1167.

Reasoning: In reasoning, GPT-5.2 scores 87.9% on GPQA Diamond compared to Claude Opus 5's 87.0%, while Claude Opus 5 scores 79.6% on τ²-Bench Airline compared to GPT-5.2's 73.3%.

Context: In context, Claude Opus 5 scores 1.0M on Context Length compared to GPT-5.2's 400K.

Pricing Comparison

Claude Opus 5 costs $5.0/1M input tokens and $25.0/1M output tokens, while GPT-5.2 costs $1.8/1M input and $14.0/1M output. GPT-5.2 is the more affordable option for API usage.

Verdict

GPT-5.2 leads across the board in affordability, making it the stronger overall choice in this comparison.

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Claude Opus 5 vs GPT-5.2 — FAQ

Which is better, Claude Opus 5 or GPT-5.2?

Claude Opus 5 and GPT-5.2 are evenly matched across benchmarks. The best choice depends on your specific priorities such as coding ability, speed, or pricing.

How does Claude Opus 5 compare to GPT-5.2 for coding?

SWE-bench Verified data is not available for both models. Check the detailed comparison charts above for other coding-related metrics.

Is Claude Opus 5 cheaper than GPT-5.2?

Yes, GPT-5.2 is cheaper. Claude Opus 5 costs $5.0/1M input and $25.0/1M output tokens. GPT-5.2 costs $1.8/1M input and $14.0/1M output tokens.

Which is faster, Claude Opus 5 or GPT-5.2?

Output speed data is not available for both models. Check the speed section of the comparison above for available performance data.

What benchmarks does the Claude Opus 5 vs GPT-5.2 comparison cover?

This comparison covers 8 benchmarks including GPQA Diamond, Input Cost, Output Cost, Context Length, Cached Input Cost, Design Arena ELO, τ²-Bench Airline, Website Arena ELO. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.