Compare Claude Haiku 5.5 from Anthropic and Kimi K3 from moonshotai on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.


Claude Haiku 5.5 and Kimi K3 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Claude Haiku 5.5, from Anthropic, has a 1,000,000-token context window and is priced at $0.10/M tokens input, $0.50/M tokens output on OpenRouter.
Kimi K3, from moonshotai, has a 1,048,576-token context window and is priced at $0.294/M tokens input, $28/M tokens output on OpenRouter.
| Attribute | Claude Haiku 5.5 | Kimi K3 |
|---|---|---|
| Input price | $0.10/M tokens | $0.294/M tokens |
| Output price | $0.50/M tokens | $28/M tokens |
| Context window | 1,000,000 tokens | 1,048,576 tokens |
| Intelligence Index | 43.4 | 43.6 |
| Coding Index | Not available | 76.2 |
| Agentic Index | Not available | 50.0 |
| Latency (p50) | 2.34 s | 0.80 s |
| Throughput (p50) | 171.0 tok/s | 61.0 tok/s |
Benchmark data updated
Kimi K3 has the longer context window at 1,048,576 tokens, compared with 1,000,000 tokens for Claude Haiku 5.5.
Claude Haiku 5.5 is faster on OpenRouter, generating a median 171.0 tokens per second compared with 61.0 tokens per second for Kimi K3.