Claude Opus 4.6 vs Grok 4
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Claude Opus 4.6 by Anthropic wins on 9 of 16 benchmarks against Grok 4 by xAI, which leads on 6. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from the AI Value Index.
Category-by-Category Breakdown
General Intelligence: In general intelligence, Claude Opus 4.6 scores 1496 on Chatbot Arena ELO compared to Grok 4's 1430, while Grok 4 scores 87.0% on MMLU-Pro compared to Claude Opus 4.6's 82.0%.
Coding: In coding, Claude Opus 4.6 scores 93.5% on HumanEval+ compared to Grok 4's 90.0%, while Claude Opus 4.6 scores 80.8% on SWE-bench Verified compared to Grok 4's 72.0%, while Claude Opus 4.6 scores 72.0% on LiveCodeBench compared to Grok 4's 65.0%, while Grok 4 scores 79.6% on Aider Polyglot compared to Claude Opus 4.6's 75.0%.
Math: In math, Claude Opus 4.6 scores 92.0% on MATH compared to Grok 4's 91.0%, while both score 97.0% on GSM8K, while Claude Opus 4.6 scores 100.0% on AIME 2025 compared to Grok 4's 93.0%.
Reasoning: In reasoning, Claude Opus 4.6 scores 91.3% on GPQA Diamond compared to Grok 4's 87.0%, while Claude Opus 4.6 scores 60.0% on ARC-AGI compared to Grok 4's 50.0%.
Context: In context, Grok 4 scores 256K on Context Length compared to Claude Opus 4.6's 200K.
Pricing Comparison
Claude Opus 4.6 costs $5.0/1M input tokens and $25.0/1M output tokens, while Grok 4 costs $3.0/1M input and $15.0/1M output. Grok 4 is the more affordable option for API usage.
Speed Comparison
Claude Opus 4.6 generates output at 68 tok/s compared to Grok 4's 55 tok/s, and the time to first token is 1680 ms for Claude Opus 4.6 versus 500 ms for Grok 4. Claude Opus 4.6 delivers faster throughput.
Verdict
For developers prioritizing coding and general intelligence and math and speed, Claude Opus 4.6 has the edge. For those who value affordability, Grok 4 is the stronger choice.
View Individual Model Pages
Claude Opus 4.6 vs Grok 4 — FAQ
Which is better, Claude Opus 4.6 or Grok 4?
Claude Opus 4.6 wins on more benchmarks overall (9 vs 6). However, the best choice depends on your specific needs — each model excels in different areas.
How does Claude Opus 4.6 compare to Grok 4 for coding?
Claude Opus 4.6 is better for coding, scoring 80.8% on SWE-bench Verified compared to 72.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Claude Opus 4.6 cheaper than Grok 4?
Yes, Grok 4 is cheaper. Claude Opus 4.6 costs $5.0/1M input and $25.0/1M output tokens. Grok 4 costs $3.0/1M input and $15.0/1M output tokens.
Which is faster, Claude Opus 4.6 or Grok 4?
Claude Opus 4.6 is faster, generating output at 68 tok/s compared to 55 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Claude Opus 4.6 vs Grok 4 comparison cover?
This comparison covers 16 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.