{"slug": "kimi-k3-vs-k2-6-vs-fable-5-vs-gpt-the-specs-and-real-api-pricing-in-one-table", "title": "Kimi K3 vs K2.6 vs Fable 5 vs GPT: the specs and real API pricing in one table", "summary": "Moonshot AI released Kimi K3, a large language model with a 1M-token context window and API pricing of $3.00 per million input tokens and $15.00 per million output tokens, with cache-hit input dropping to $0.30 per million. A developer compiled a comparison table of Kimi K3, Kimi K2.6, Fable 5, and GPT, highlighting open weights and pricing differences.", "body_md": "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.\n\n| Kimi K3 | Kimi K2.6 | Fable 5 | GPT | |\n|---|---|---|---|---|\n| Context | 1M tokens | 256K (262,144) | see vendor | see vendor |\n| API input | $3.00 / 1M | $0.95 / 1M | premium | premium |\n| API output | $15.00 / 1M | $4.00 / 1M | premium | premium |\n| Open weights | ✅ | ✅ | ❌ | ❌ |\n\nOne 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.\n\nWhere 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.\n\nFull table and more fields here (disclosure: I built the page): [https://kimi3.online](https://kimi3.online)\n\nIf you've run K3 in anger, I'd love corrections — especially on backend/reasoning vs Sol 5.6.", "url": "https://wpnews.pro/news/kimi-k3-vs-k2-6-vs-fable-5-vs-gpt-the-specs-and-real-api-pricing-in-one-table", "canonical_source": "https://dev.to/chenguang_muhai_974fbf33b/kimi-k3-vs-k26-vs-fable-5-vs-gpt-the-specs-and-real-api-pricing-in-one-table-2bf4", "published_at": "2026-07-18 05:12:18+00:00", "updated_at": "2026-07-18 06:00:00.429922+00:00", "lang": "en", "topics": ["large-language-models", "ai-products", "ai-tools", "developer-tools"], "entities": ["Moonshot AI", "Kimi K3", "Kimi K2.6", "Fable 5", "GPT"], "alternates": {"html": "https://wpnews.pro/news/kimi-k3-vs-k2-6-vs-fable-5-vs-gpt-the-specs-and-real-api-pricing-in-one-table", "markdown": "https://wpnews.pro/news/kimi-k3-vs-k2-6-vs-fable-5-vs-gpt-the-specs-and-real-api-pricing-in-one-table.md", "text": "https://wpnews.pro/news/kimi-k3-vs-k2-6-vs-fable-5-vs-gpt-the-specs-and-real-api-pricing-in-one-table.txt", "jsonld": "https://wpnews.pro/news/kimi-k3-vs-k2-6-vs-fable-5-vs-gpt-the-specs-and-real-api-pricing-in-one-table.jsonld"}}