# Kimi K3 vs K2.6 vs Fable 5 vs GPT: the specs and real API pricing in one table > Source: > Published: 2026-07-18 05:12:18+00:00 Kimi K3 dropped two days ago and my timeline hasn't stopped talking about it. But the actual numbers you need for a build decision — context window, benchmarks, and real token pricing — are scattered across launch posts and docs. I got tired of reconciling five tabs, so I put them side by side. | Kimi K3 | Kimi K2.6 | Fable 5 | GPT | | |---|---|---|---|---| | Context | 1M tokens | 256K (262,144) | see vendor | see vendor | | API input | $3.00 / 1M | $0.95 / 1M | premium | premium | | API output | $15.00 / 1M | $4.00 / 1M | premium | premium | | Open weights | ✅ | ✅ | ❌ | ❌ | One pricing detail worth flagging: K3's **cache-hit input drops to $0.30 / 1M**. If you run long system prompts or multi-turn agents, that's where the "cheap" reputation actually comes from — not the base rate. Where I couldn't confirm an official number I left it blank instead of guessing. Pricing is per Moonshot's stated rates — **verify against the official pages before you build on it.** Benchmarks are one signal, not the whole story; for "does the output actually feel good," throw a couple of dollars at your own hardest task. Full table and more fields here (disclosure: I built the page): [https://kimi3.online](https://kimi3.online) If you've run K3 in anger, I'd love corrections — especially on backend/reasoning vs Sol 5.6.