Claude Opus 4.8 vs Kimi K2 Thinking
anthropic/claude-opus-4.8 · moonshotai/kimi-k2-thinking
As of November 2, 2026, Kimi K2 Thinking is the cheaper API on UberLLM: $0.0059 per million input tokens and $0.0248 per million output, versus $0.2894 / $1.45 for Claude Opus 4.8, about 98% less when output is 3 tokens for every input token. These are the best prices on the market right now. Both work with one OpenAI-compatible key and UberLLM adds no fee. Choose Kimi K2 Thinking to cut cost; choose Claude Opus 4.8 when context size wins. Claude Opus 4.8 carries the larger context window (1,000,000 vs 262,144 tokens), which can matter for long-document work.
Claude Opus 4.8 vs Kimi K2 Thinking, side by side
| Spec | Claude Opus 4.8 | Kimi K2 Thinking |
|---|---|---|
| Price · input / 1M | $0.2894 | $0.0059 |
| Price · output / 1M | $1.45 | $0.0248 |
| Context length | 1,000,000 | 262,144 |
| Max output tokens | 64,000 | 32,768 |
| Input modalities | text | text |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Reasoning | Yes | Yes |
| % off list | 94.2% off | 99% off |
Best prices on UberLLM right now. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 2, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
Claude Opus 4.8 vs Kimi K2 Thinking — FAQ
Is Claude Opus 4.8 or Kimi K2 Thinking cheaper?
Kimi K2 Thinking is cheaper on a blended token mix, by about 98%. A request costs what its provider charged, UberLLM adds no fee, and every request is listed with its cost in Activity.
What's the price difference between Claude Opus 4.8 and Kimi K2 Thinking?
Claude Opus 4.8: $0.2894 in / $1.45 out per 1M tokens. Kimi K2 Thinking: $0.0059 in / $0.0248 out per 1M tokens. That's roughly a 98% blended difference. Prices are live; UberLLM adds no fee.
Can I use both Claude Opus 4.8 and Kimi K2 Thinking with one API?
Yes. Both are served through a single OpenAI-compatible endpoint — set the base URL to https://api.uberllm.dev/v1 and your UberLLM key, then switch between them by changing the model id. Anthropic SDKs work via https://api.uberllm.dev/v1/messages.