Claude Opus 4.1 vs Kimi-k1.5 Comparison
Comparing Claude Opus 4.1 and Kimi-k1.5 across benchmarks, pricing, and capabilities.
Performance Benchmarks
Comparative analysis across standard metrics
Claude Opus 4.1 and Kimi-k1.5 don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
Cost data unavailable.
Context Window
Maximum input and output token capacity
Only Claude Opus 4.1 specifies input context (200,000 tokens). Only Claude Opus 4.1 specifies output context (32,000 tokens).
Input Capabilities
Supported data types and modalities
Both Claude Opus 4.1 and Kimi-k1.5 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude Opus 4.1
Kimi-k1.5
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Claude Opus 4.1 was released on 2025-08-05, while Kimi-k1.5 was released on 2025-01-20.
Claude Opus 4.1 is 7 months newer than Kimi-k1.5.
Aug 5, 2025
7 months ago
6mo newerJan 20, 2025
1.2 years ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Key Takeaways
Claude Opus 4.1
View detailsAnthropic
Kimi-k1.5
View detailsMoonshot AI
Detailed Comparison
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