Claude Opus 4 vs DeepSeek V3.1

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

Claude Opus 4 by Anthropic wins on 12 of 17 benchmarks against DeepSeek V3.1 by DeepSeek, which leads on 5. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.

Category-by-Category Breakdown

General Intelligence: In general intelligence, Claude Opus 4 scores 1375 on Chatbot Arena ELO compared to DeepSeek V3.1's 1340, while Claude Opus 4 scores 83.0% on MMLU-Pro compared to DeepSeek V3.1's 78.0%.

Coding: In coding, Claude Opus 4 scores 90.0% on HumanEval+ compared to DeepSeek V3.1's 84.0%, while Claude Opus 4 scores 72.5% on SWE-bench Verified compared to DeepSeek V3.1's 46.0%, while Claude Opus 4 scores 60.0% on LiveCodeBench compared to DeepSeek V3.1's 48.0%, while Claude Opus 4 scores 1171 on Design Arena ELO compared to DeepSeek V3.1's 1133, while Claude Opus 4 scores 1177 on Website Arena ELO compared to DeepSeek V3.1's 1135.

Math: In math, Claude Opus 4 scores 86.0% on MATH compared to DeepSeek V3.1's 82.0%, while Claude Opus 4 scores 95.0% on GSM8K compared to DeepSeek V3.1's 92.0%.

Reasoning: In reasoning, Claude Opus 4 scores 79.6% on GPQA Diamond compared to DeepSeek V3.1's 79.3%, while Claude Opus 4 scores 45.0% on ARC-AGI compared to DeepSeek V3.1's 35.0%.

Context: In context, Claude Opus 4 scores 200K on Context Length compared to DeepSeek V3.1's 164K.

Pricing Comparison

Claude Opus 4 costs $15.0/1M input tokens and $75.0/1M output tokens, while DeepSeek V3.1 costs $0.25/1M input and $0.95/1M output. DeepSeek V3.1 is the more affordable option for API usage.

Speed Comparison

Claude Opus 4 generates output at 50 tok/s compared to DeepSeek V3.1's 65 tok/s, and the time to first token is 550 ms for Claude Opus 4 versus 450 ms for DeepSeek V3.1. DeepSeek V3.1 delivers faster throughput.

Verdict

For developers prioritizing coding and general intelligence and math, Claude Opus 4 has the edge. For those who value affordability and speed, DeepSeek V3.1 is the stronger choice.

Claude Opus 4 vs DeepSeek V3.1 — FAQ

Which is better, Claude Opus 4 or DeepSeek V3.1?

Claude Opus 4 wins on more benchmarks overall (12 vs 5). However, the best choice depends on your specific needs — each model excels in different areas.

How does Claude Opus 4 compare to DeepSeek V3.1 for coding?

Claude Opus 4 is better for coding, scoring 72.5% on SWE-bench Verified compared to 46.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.

Is Claude Opus 4 cheaper than DeepSeek V3.1?

Yes, DeepSeek V3.1 is cheaper. Claude Opus 4 costs $15.0/1M input and $75.0/1M output tokens. DeepSeek V3.1 costs $0.25/1M input and $0.95/1M output tokens.

Which is faster, Claude Opus 4 or DeepSeek V3.1?

DeepSeek V3.1 is faster, generating output at 65 tok/s compared to 50 tok/s. Faster output speed means shorter wait times for API responses.

What benchmarks does the Claude Opus 4 vs DeepSeek V3.1 comparison cover?

This comparison covers 17 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, MATH, SWE-bench Verified, GPQA Diamond, Output Speed, Time to First Token, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.