GPT-5.1-Codex vs Grok 4.7
Price, context window & benchmark comparison
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Verdict: Grok 4.7 is 30% cheaper than GPT-5.1-Codex on a typical 3:1 input/output mix. Grok 4.7 has the larger context window (500K vs 400K).
| GPT-5.1-Codex | Grok 4.7 | |
|---|---|---|
| Input price / 1M | $1.25 | $1.60 |
| Output price / 1M | $10.00 | $4.80 |
| Blended price (3:1) | $3.44 | $2.40 |
| Cached input / 1M | $0.13 | $0.40 |
| Context window | 400K | 500K |
| Max output | 128K | 450K |
| Intelligence index | — | 46.4 |
| Coding index | — | — |
| Providers | — | 4 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2025-11-13 | 2026-09-21 |
| Retirement | — | — |
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FAQ
Which is cheaper, GPT-5.1-Codex or Grok 4.7?
Grok 4.7 is 30% cheaper than GPT-5.1-Codex on a typical 3:1 input/output mix.
GPT-5.1-Codex vs Grok 4.7: which has a bigger context window?
GPT-5.1-Codex: 400,000 tokens. Grok 4.7: 500,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GPT-5.1-Codex ≈ $7,500, Grok 4.7 ≈ $5,600.
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