League fixture
DeepSeek V4.1 Flash vs Kimi K2.6.
Open-weight championship — decided by the data: category winners, tale of the tape and head-to-head benchmarks.
League fixture: Open-weight championship. In Season Zero, fixture results are decided by the data — the category winners above. When voted fixtures launch, results blend 60% benchmark / 40% crowd per the published rulebook.
Verdict by category
| Category | DeepSeek V4.1 Flash | Kimi K2.6 | Winner |
|---|---|---|---|
| League Score | 75.4 | 69.7 | DeepSeek V4.1 Flash |
| Coding (SWE-bench %) | — | 80.2 | — |
| Reasoning (GPQA %) | 90.9 | 90.5 | DeepSeek V4.1 Flash |
| Context (tokens) | 1000000 | 262144 | DeepSeek V4.1 Flash |
| Speed (tok/s) | 213 | — | — |
| Price (blended $/1M) | $0.52 | $1.71 | DeepSeek V4.1 Flash (cheaper) |
Tale of the tape
| Spec | DeepSeek V4.1 Flash | Kimi K2.6 |
|---|---|---|
| Maker | DeepSeek | Moonshot AI |
| Released | Sep 10, 2026 | Apr 20, 2026 |
| League Score | 75 | 70 |
| Context | 1,000,000 tokens | 262,144 tokens |
| Max output | 384,000 | — |
| $/1M input | $0.30 | $0.95 |
| $/1M output | $1.20 | $4.00 |
| Weights | Open | Open |
| Speed | 213 t/s | — |
Head-to-head benchmarks (shared only)
| Benchmark | DeepSeek V4.1 Flash | Kimi K2.6 |
|---|---|---|
| GPQA Diamond | 90.9 | 90.5 |
Cost at three workloads
| Workload | DeepSeek V4.1 Flash | Kimi K2.6 |
|---|---|---|
| Light — 1M in / 250K out | $0.60 | $1.95 |
| Standard — 10M in / 2.5M out | $6.00 | $19.50 |
| Long-context — 50M in / 5M out | $21.00 | $67.50 |
The pick
Pick DeepSeek V4.1 Flash if you want the higher overall League Score; you need the bigger context window; you want the lower running cost.
Pick Kimi K2.6 if coding is the priority.
All figures from the model database — sources and dates on each model page. Cost your own workload or compare a different pair.