Claude Opus 4.8 vs Grok Build 0.1
Price, context window & benchmark comparison
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Verdict: Grok Build 0.1 is 8.0× cheaper than Claude Opus 4.8 on a typical 3:1 input/output mix. Claude Opus 4.8 has the larger context window (1M vs 256K).
| Claude Opus 4.8 | Grok Build 0.1 | |
|---|---|---|
| Input price / 1M | $5.00 | $1.00 |
| Output price / 1M | $25.00 | $2.00 |
| Blended price (3:1) | $10.00 | $1.25 |
| Cached input / 1M | $0.50 | $0.20 |
| Context window | 1M | 256K |
| Max output | 128K | 230K |
| Intelligence index | 41.8 | — |
| Coding index | 74.3 | 51.5 |
| Providers | 11 | 4 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-05-27 | 2026-05-20 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, Claude Opus 4.8 or Grok Build 0.1?
Grok Build 0.1 is 8.0× cheaper than Claude Opus 4.8 on a typical 3:1 input/output mix.
Claude Opus 4.8 vs Grok Build 0.1: which has a bigger context window?
Claude Opus 4.8: 1,000,000 tokens. Grok Build 0.1: 256,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Claude Opus 4.8 ≈ $22,500, Grok Build 0.1 ≈ $3,000.
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