Kimi K3 vs GPT-5.6 Sol
⚖ Kimi K3 wins 3 of 4 categories and costs less: 1.3× cheaper for everyday text work. Easy pick.
Scores by category
| Category | Kimi K3 | GPT-5.6 Sol |
|---|---|---|
| Overall | 65 | 68 |
| Writing | 69 | 67 |
| Support | 73 | 66 |
| Coding | 74 | 67 |
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
| Kimi K3 | GPT-5.6 Sol | |
|---|---|---|
| Vendor | Moonshot AI | OpenAI |
| Released | 2026-07-16 | 2026-07-09 |
| Context window | 1M | 1.1M |
| Open weights | Yes | No |
| Input per 1M tokens | $3.00 | $4.00 |
| Output per 1M tokens | $15.00 | $20.00 |
| Per 1,000 tasks | $12.00 | $16.00 |