Claude Opus 4.6 vs DeepSeek V4 Flash 0731
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Claude Opus 4.6 by Anthropic and DeepSeek V4 Flash 0731 by Alibaba 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 4.6 scores 1289 on Design Arena ELO compared to DeepSeek V4 Flash 0731's 1217, while Claude Opus 4.6 scores 1298 on Website Arena ELO compared to DeepSeek V4 Flash 0731's 1250.
Reasoning: In reasoning, Claude Opus 4.6 scores 85.3% on GPQA Diamond compared to DeepSeek V4 Flash 0731's 85.1%, while Claude Opus 4.6 scores 75.7% on τ²-Bench Airline compared to DeepSeek V4 Flash 0731's 72.8%.
Context: In context, DeepSeek V4 Flash 0731 scores 1.3M on Context Length compared to Claude Opus 4.6's 1.0M.
Pricing Comparison
Claude Opus 4.6 costs $5.0/1M input tokens and $25.0/1M output tokens, while DeepSeek V4 Flash 0731 costs $0.06/1M input and $0.12/1M output. DeepSeek V4 Flash 0731 is the more affordable option for API usage.
Verdict
DeepSeek V4 Flash 0731 leads across the board in affordability, making it the stronger overall choice in this comparison.
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Claude Opus 4.6 vs DeepSeek V4 Flash 0731 — FAQ
Which is better, Claude Opus 4.6 or DeepSeek V4 Flash 0731?
Claude Opus 4.6 and DeepSeek V4 Flash 0731 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 DeepSeek V4 Flash 0731 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 DeepSeek V4 Flash 0731?
Yes, DeepSeek V4 Flash 0731 is cheaper. Claude Opus 4.6 costs $5.0/1M input and $25.0/1M output tokens. DeepSeek V4 Flash 0731 costs $0.06/1M input and $0.12/1M output tokens.
Which is faster, Claude Opus 4.6 or DeepSeek V4 Flash 0731?
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 DeepSeek V4 Flash 0731 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.