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Claude Opus 4.6 vs Grok 3

Grok 3 leads in 3 of 8 categories

Arena ELO

Claude Opus 4.6

Cheaper

Grok 3

Faster

Grok 3

Detailed Comparison

CategoryClaude Opus 4.6Grok 3
ProviderAnthropic xAI
Context Window1M WIN131K
Input Price ($/1M)$5 $3 WIN
Output Price ($/1M)$25 $15 WIN
Arena ELO1549 WIN1325
Coding80.8% SWE-bench unknown
Reasoning65.4% Terminal-Bench 93.3% AIME 2025
Speed (tokens/sec)~40 t/s ~55 t/s WIN
Open SourceNo No

Frequently Asked Questions

Which is cheaper, Claude Opus 4.6 or Grok 3?

Grok 3 is approximately 40% cheaper than Claude Opus 4.6 per million tokens.

Which is better for coding, Claude Opus 4.6 or Grok 3?

Claude Opus 4.6 scores 80.8% SWE-bench on coding benchmarks, while Grok 3 scores unknown.

Which has a larger context window?

Claude Opus 4.6 supports 1M context, while Grok 3 supports 131K.

Is Claude Opus 4.6 or Grok 3 open source?

Claude Opus 4.6 is proprietary. Grok 3 is proprietary.

Which ranks higher on the Chatbot Arena leaderboard?

Claude Opus 4.6 ranks higher with ELO 1549 vs 1325.