GLM-5.3 Flash vs Qwen3.8 Max: Specs & Benchmark Comparison
GLM-5.3 Flash is developed by Zhipu AI, while Qwen3.8 Max comes from Alibaba. Both were released in August 2026. Qwen3.8 Max is the larger model at roughly 2.4 trillion parameters, against 320 billion for GLM-5.3 Flash.
The two models share 7 published benchmarks. GLM-5.3 Flash leads on 5 of them, Qwen3.8 Max on 2. The widest gaps are on Agents' Last Exam, where Qwen3.8 Max scores 52.4% against 26.3%; AutomationBench v1.0.6, where GLM-5.3 Flash scores 48.8% against 27.3%. Averaged across everything we track, GLM-5.3 Flash sits at 64.1% and Qwen3.8 Max at 71.0%.
GLM-5.3 Flash is the cheaper API at $0.15 per million input tokens and $0.50 per million output tokens, roughly 17 times cheaper than Qwen3.8 Max at $2.50 and $6.25. Both accept a context window of about 1M tokens. GLM-5.3 Flash accepts text, images, and video as input, while Qwen3.8 Max accepts text and images.
| Characteristic | GLM-5.3 Flash | Qwen3.8 Max |
|---|---|---|
| Company | Zhipu AI | Alibaba |
| Release Date | August 26, 2026 | August 2, 2026 |
| Parameters | 320B | 2.4T |
| Multimodal | Yes | Yes |
| Context (input) | 1.0M | 1.0M |
| Context (output) | 131K | 131K |
| Input Price / 1M | $0.15 | $2.50 |
| Output Price / 1M | $0.50 | $6.25 |
| Average Score | 64.1% | 71.0% |
| Benchmarks | ||
| Agents' Last Exam | 26.3% | 52.4% |
| AutomationBench v1.0.6 | 48.8% | 27.3% |
| Humanity's Last Exam | 55.3% | 43.6% |
| DeepSWE 1.1 | 63.4% | 56.6% |
| Toolathlon Verified | 78.4% | 72.5% |
| Terminal-Bench 2.1 | 84.3% | 86.6% |
| NL2Repo | 56.3% | 55.9% |
Visual Benchmark Comparison
Verdict
GLM-5.3 Flash leads in 3 out of 4 comparison categories.
Both models show comparable average scores: GLM-5.3 Flash — 0.6, Qwen3.8 Max — 0.7.
GLM-5.3 Flash is 13.5x cheaper: input $0.15/1M vs $2.50/1M tokens.
GLM-5.3 Flash supports a larger context: 1M vs 1M tokens.
GLM-5.3 Flash is newer: released 8/26/2026 vs 8/2/2026.
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Frequently Asked Questions
Which is better for coding — GLM-5.3 Flash or Qwen3.8 Max?
Which model is cheaper — GLM-5.3 Flash or Qwen3.8 Max?
Which has a larger context window — GLM-5.3 Flash or Qwen3.8 Max?
The GLM-5.3 Flash and Qwen3.8 Max comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GLM-5.3 Flash or Qwen3.8 Max page. See also the complete list of AI model comparisons.