GLM 5.1 vs Grok 4.7
Price, context window & benchmark comparison
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Verdict: GLM 5.1 is 38% cheaper than Grok 4.7 on a typical 3:1 input/output mix. Grok 4.7 scores higher on the Artificial Analysis Intelligence Index (46.4 vs 26.1). Grok 4.7 has the larger context window (500K vs 205K).
| GLM 5.1 | Grok 4.7 | |
|---|---|---|
| Input price / 1M | $0.97 | $1.60 |
| Output price / 1M | $3.04 | $4.80 |
| Blended price (3:1) | $1.48 | $2.40 |
| Cached input / 1M | $0.18 | $0.40 |
| Context window | 205K | 500K |
| Max output | 128K | 450K |
| Intelligence index | 26.1 | 46.4 |
| Coding index | 55.8 | — |
| Providers | — | 4 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | No | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-04-07 | 2026-09-21 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, GLM 5.1 or Grok 4.7?
GLM 5.1 is 38% cheaper than Grok 4.7 on a typical 3:1 input/output mix.
GLM 5.1 vs Grok 4.7: which has a bigger context window?
GLM 5.1: 204,800 tokens. Grok 4.7: 500,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GLM 5.1 ≈ $3,450, Grok 4.7 ≈ $5,600.
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