Claude Haiku 5.5 vs Kimi K3.1 Pro
Detailed technical comparison between Claude Haiku 5.5 (Anthropic) and Kimi K3.1 Pro (Moonshot AI). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.
Comparison Snapshot
Kimi K3.1 Pro
1,048,576 tokensTie
Equal CapabilityTie
Equal SpeedClaude Haiku 5.5
$0.10 / MTokClaude Haiku 5.5
Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding, computer use, and...
Kimi K3.1 Pro
Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window. It is built for long-horizon coding, 3D...
Technical Specifications
🏆 = Superior Spec| Specification | Claude Haiku 5.5 | Kimi K3.1 Pro |
|---|---|---|
| Provider | Anthropic | Moonshot AI |
| Context Window | 1,000,000 tokens | 1,048,576 tokens🏆 |
| Agent Suitability | Not yet benchmarked | Not yet benchmarked |
| Time to First Token (TTFT) | No public TTFT data | No public TTFT data |
| Deployment Model | managed api | managed api |
| Production Stability | Stable release | Not verified |
| API Available | Yes | Yes |
| Released Date | 2026-10-07 | 2026-10-23 |
API Pricing Comparison
Input Price per Million Tokens
Claude Haiku 5.5
$0.10
Kimi K3.1 Pro
$2.00
Output Price per Million Tokens
Claude Haiku 5.5
$0.50
Kimi K3.1 Pro
$10.00
💡 Cost Ratio: Claude Haiku 5.5 is 20.0x cheaper per input token than Kimi K3.1 Pro.
Want to test both models live?
Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.
Benchmark Performance Metrics
Standardized Scores (0–100%)Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.
Claude Haiku 5.5 Quirks & Gotchas
No developer gotchas reported.
Kimi K3.1 Pro Quirks & Gotchas
No developer gotchas reported.
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