GLM 5.3 Flash Review: #3 Open-Weight Model, 50% Cheaper than Qwen
davidthesong · reddit · 2026-08-27
According to BenchmarkList data, GLM 5.3 Flash performs impressively.
Key Metrics:
- Rank: Ranked #3 among open-weight models.
- Cost: About 50% cheaper than Qwen3.8 Flash and up to 60x cheaper than Kimi K3.
- Performance: Beats the full GLM 5.3 on Toolathlon and GDPval-AA benchmarks.
Conclusion:
The model breaks the Pareto frontier and is considered a massive release. The author invites the community to share testing experiences across different use cases.
Related event: GLM-5.3-Flash Ranks Third Among Open Models at Half of Qwen's Cost(2 posts)→
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