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technologyreview.com·1h ago
Cloud & Infrastructure
The New Stack·15d ago·5 min read
Claude Fable 5 vs. Kimi K3: Same results, one-third the cost, 4x slower
TL;DR
Moonshot AI's Kimi K3 has been introduced as a cost-effective coding tool, priced at one-third of Claude Fable 5. Despite achieving similar results, Kimi K3 operates at four times slower speeds.
✦ Why It Matters
Consider evaluating Kimi K3 for budget-sensitive projects, but assess its speed against your deadlines.
Key Takeaways
- Evaluate Kimi K3 for budget-friendly coding solutions.
- Be aware of Kimi's slower execution times compared to competitors.
- Monitor future updates for potential performance improvements.
- Consider the trade-off between cost and speed in tool selection.
Full Summary
Kimi K3, released by Moonshot AI, is a 2.8-trillion-parameter open-weight model designed to compete with established tools like Fable 5 and GPT. In a series of coding tests, Kimi K3 delivered identical results to Fable 5 on three tasks: a bug fix, a multi-file refactor, and a feature build.
However, Kimi K3 took significantly longer, completing the tasks in approximately 28 minutes compared to Fable's 7 minutes. While Kimi's total cost was $2.13 versus Fable's $5.98, the slower performance raises concerns about its competitiveness in a crowded market.
The findings suggest that while Kimi K3 offers cost savings, it must improve its speed to be a viable option for professional developers.