Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Kimi K2.5 (Reasoning) | Hermes 4 - Llama-3.1 405B (Non-reasoning) |
|---|---|---|
| Input ($/M tokens) | $0.6 | $1 |
| Output ($/M tokens) | $3 | $3 |
Data from Artificial Analysis API — 12 benchmarks
Kimi K2.5 (Reasoning) is cheaper overall. Its blended price (3:1 input/output ratio) is $1.20/M tokens vs $1.50/M for Hermes 4 - Llama-3.1 405B (Non-reasoning).
Kimi K2.5 (Reasoning) wins 7 out of 12 benchmarks compared to 4 for Hermes 4 - Llama-3.1 405B (Non-reasoning). See the detailed benchmark chart above for per-category results.
Kimi K2.5 (Reasoning) generates tokens faster at 36 tok/s vs 33 tok/s. However, Hermes 4 - Llama-3.1 405B (Non-reasoning) has lower time-to-first-token (0.68s vs 1.46s).
Choose based on your priorities: Kimi K2.5 (Reasoning) for lower cost, Kimi K2.5 (Reasoning) for stronger benchmark performance, and Kimi K2.5 (Reasoning) for faster generation. For latency-sensitive apps, check the TTFT comparison above.