GLM 5.3 vs Grok 4.5
Price, context window & benchmark comparison
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Verdict: GLM 5.3 is 2.3× cheaper than Grok 4.5 on a typical 3:1 input/output mix. GLM 5.3 scores higher on the Artificial Analysis Intelligence Index (44.8 vs 38.8). GLM 5.3 has the larger context window (1.3M vs 500K).
| GLM 5.3 | Grok 4.5 | |
|---|---|---|
| Input price / 1M | $0.84 | $2.00 |
| Output price / 1M | $2.64 | $6.00 |
| Blended price (3:1) | $1.29 | $3.00 |
| Cached input / 1M | $0.16 | $0.30 |
| Context window | 1.3M | 500K |
| Max output | 131K | 450K |
| Intelligence index | 44.8 | 38.8 |
| Coding index | 74.8 | 72.4 |
| Providers | 34 | 4 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | No | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-08-18 | 2026-07-08 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, GLM 5.3 or Grok 4.5?
GLM 5.3 is 2.3× cheaper than Grok 4.5 on a typical 3:1 input/output mix.
GLM 5.3 vs Grok 4.5: which has a bigger context window?
GLM 5.3: 1,310,720 tokens. Grok 4.5: 500,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GLM 5.3 ≈ $3,000, Grok 4.5 ≈ $7,000.
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