GLM-5.3 vs Kimi K3
⚖ Kimi K3 wins 3 of 4 categories, but GLM-5.3 is 2.8× cheaper for everyday text work. Pick Kimi K3 when quality matters most, GLM-5.3 at volume.
Scores by category
| Category | GLM-5.3 | Kimi K3 |
|---|---|---|
| Overall | 61 | 65 |
| Writing | 70 | 69 |
| Support | 67 | 73 |
| Coding | 68 | 74 |
Provisional scores, 0 to 100 among the models we track, from Arena and Epoch AI. Value weighs the overall score against cost.
Price and specs
| GLM-5.3 | Kimi K3 | |
|---|---|---|
| Vendor | Z.ai | Moonshot AI |
| Released | 2026-08-14 | 2026-07-16 |
| Context window | 1M | 1M |
| Open weights | Yes | Yes |
| Input per 1M tokens | $1.40 | $3.00 |
| Output per 1M tokens | $4.40 | $15.00 |
| Per 1,000 tasks | $4.30 | $12.00 |