GLM 5.3 vs Kimi K3.1 Pro
Price, context window & benchmark comparison
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Verdict: GLM 5.3 is 9.9× cheaper than Kimi K3.1 Pro on a typical 3:1 input/output mix. Kimi K3.1 Pro scores higher on the Artificial Analysis Intelligence Index (46.5 vs 31.7).
| GLM 5.3 | Kimi K3.1 Pro | |
|---|---|---|
| Input price / 1M | $0.0699 | $2.00 |
| Output price / 1M | $1.40 | $10.00 |
| Blended price (3:1) | $0.40 | $4.00 |
| Cached input / 1M | $0.0689 | $0.20 |
| Context window | 1M | 1M |
| Max output | 944K | 944K |
| Intelligence index | 31.7 | 46.5 |
| Coding index | 74.8 | — |
| Providers | 48 | 23 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | No | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-08-18 | 2026-10-23 |
| Retirement | — | — |
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FAQ
Which is cheaper, GLM 5.3 or Kimi K3.1 Pro?
GLM 5.3 is 9.9× cheaper than Kimi K3.1 Pro on a typical 3:1 input/output mix.
GLM 5.3 vs Kimi K3.1 Pro: which has a bigger context window?
GLM 5.3: 1,048,576 tokens. Kimi K3.1 Pro: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GLM 5.3 ≈ $839.80, Kimi K3.1 Pro ≈ $9,000.
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