Claude Opus 5 vs Grok 4
Grok 4 leads in 5 of 8 categories
Arena ELO
Grok 4
Cheaper
Grok 4
Faster
Grok 4
Detailed Comparison
| Category | Claude Opus 5 | Grok 4 |
|---|---|---|
| Provider | Anthropic | xAI |
| Context Window | 200K | 256K WIN |
| Input Price ($/1M) | $15 | $0.2 WIN |
| Output Price ($/1M) | $75 | $1 WIN |
| Arena ELO | N/A | 1491 WIN |
| Coding | N/A | unknown |
| Reasoning | N/A | unknown |
| Speed (tokens/sec) | N/A | ~45 t/s WIN |
| Open Source | No | No |
Frequently Asked Questions
Which is cheaper, Claude Opus 5 or Grok 4?
Grok 4 is approximately 99% cheaper than Claude Opus 5 per million tokens.
Which is better for coding, Claude Opus 5 or Grok 4?
Claude Opus 5 scores N/A on coding benchmarks, while Grok 4 scores unknown.
Which has a larger context window?
Claude Opus 5 supports 200K context, while Grok 4 supports 256K.
Is Claude Opus 5 or Grok 4 open source?
Claude Opus 5 is proprietary. Grok 4 is proprietary.
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