Claude Opus 4.6 vs GPT-5.4 mini

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

Claude Opus 4.6 by Anthropic and GPT-5.4 mini by OpenAI are evenly matched across 6 benchmarks. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.

Category-by-Category Breakdown

Reasoning: In reasoning, Claude Opus 4.6 scores 85.3% on GPQA Diamond compared to GPT-5.4 mini's 83.7%, while Claude Opus 4.6 scores 75.7% on τ²-Bench Airline compared to GPT-5.4 mini's 63.0%.

Context: In context, Claude Opus 4.6 scores 1.0M on Context Length compared to GPT-5.4 mini's 400K.

Pricing Comparison

Claude Opus 4.6 costs $5.0/1M input tokens and $25.0/1M output tokens, while GPT-5.4 mini costs $0.75/1M input and $4.5/1M output. GPT-5.4 mini is the more affordable option for API usage.

Verdict

GPT-5.4 mini leads across the board in affordability, making it the stronger overall choice in this comparison.

Claude Opus 4.6 vs GPT-5.4 mini — FAQ

Which is better, Claude Opus 4.6 or GPT-5.4 mini?

Claude Opus 4.6 and GPT-5.4 mini are evenly matched across benchmarks. The best choice depends on your specific priorities such as coding ability, speed, or pricing.

How does Claude Opus 4.6 compare to GPT-5.4 mini 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 4.6 cheaper than GPT-5.4 mini?

Yes, GPT-5.4 mini is cheaper. Claude Opus 4.6 costs $5.0/1M input and $25.0/1M output tokens. GPT-5.4 mini costs $0.75/1M input and $4.5/1M output tokens.

Which is faster, Claude Opus 4.6 or GPT-5.4 mini?

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 4.6 vs GPT-5.4 mini comparison cover?

This comparison covers 6 benchmarks including GPQA Diamond, Input Cost, Output Cost, Context Length, Cached Input Cost, τ²-Bench Airline. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.