Kimi K2.6 vs GPT OSS 120B
GPT OSS 120B is cheaper on output tokens, while Kimi K2.6 offers a larger context window. Choose Kimi K2.6 or GPT OSS 120B based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Kimi K2.6 | GPT OSS 120B |
|---|---|---|
| Provider | MoonshotAI | Neon |
| Input / 1M tokens | $0.65 | $0.15 |
| Output / 1M tokens | $3.41 | $0.60 |
| Context window | 262K | 131K |
| Parameters | 1T | 117B |
| Open weights | Yes | Yes |
| Released | Apr 2026 | Aug 2025 |
| LiveBench score | 72.4 | 46.4 |
| LMArena (Chatbot Arena) Elo score | 1455 | — |
| LMArena WebDev Elo score | 1509 | — |
| LMArena Vision Elo score | 1282 | — |
| GPQA Diamond score | 90.8 | — |
| FrontierMath score | 39.0 | — |
| Epoch Capabilities Index score | 151 | — |
| Aider Polyglot score | — | 41.8 |
FAQ
Is Kimi K2.6 or GPT OSS 120B cheaper?
GPT OSS 120B is cheaper on output tokens ($0.60 vs $3.41 per 1M).
Which has the larger context window, Kimi K2.6 or GPT OSS 120B?
Kimi K2.6 has the larger context window (262K tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.