Qwen3.8 Flash vs Qwen3.8 Max: Specs & Benchmark Comparison
Qwen3.8 Flash and Qwen3.8 Max both come from Alibaba, and both were released in August 2026. Qwen3.8 Max is the larger model at roughly 2.4 trillion parameters, against 125 billion for Qwen3.8 Flash.
The two models share 15 published benchmarks. Qwen3.8 Max leads on 11 of them, Qwen3.8 Flash on 4. The widest gaps are on NL2Repo, where Qwen3.8 Max scores 55.9% against 48.1%; Humanity's Last Exam, where Qwen3.8 Max scores 43.6% against 35.9%. Averaged across everything we track, Qwen3.8 Flash sits at 68.5% and Qwen3.8 Max at 71.0%.
Qwen3.8 Flash is the cheaper API at $0.15 per million input tokens and $0.47 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. Qwen3.8 Flash accepts text, images, and video as input, while Qwen3.8 Max accepts text and images. On tooling, only Qwen3.8 Max supports function calling and only Qwen3.8 Max offers structured output.
| Characteristic | Qwen3.8 Flash | Qwen3.8 Max |
|---|---|---|
| Company | Alibaba | Alibaba |
| Release Date | August 26, 2026 | August 2, 2026 |
| Parameters | 125B | 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 | $0.47 | $6.25 |
| Average Score | 68.5% | 71.0% |
| Benchmarks | ||
| NL2Repo | 48.1% | 55.9% |
| Humanity's Last Exam | 35.9% | 43.6% |
| ERQA | 72.3% | 77.8% |
| SWE-Bench Pro | 62.5% | 67.7% |
| LVBench | 76.6% | 81.8% |
| Vision2Web | 64.0% | 69.0% |
| Job Bench | 55.7% | 53.4% |
| DeepSWE 1.1 | 58.7% | 56.6% |
| IFBench | 81.3% | 82.8% |
| Agents' Last Exam | 51.2% | 52.4% |
| Toolathlon | 73.5% | 72.5% |
| CoWorkBench | 73.9% | 74.8% |
| GPQA | 91.7% | 92.6% |
| AndroidWorld | 84.5% | 85.3% |
| RealWorldQA | 88.5% | 88.0% |
Visual Benchmark Comparison
Verdict
Qwen3.8 Flash leads in 3 out of 4 comparison categories.
Both models show comparable average scores: Qwen3.8 Flash — 0.7, Qwen3.8 Max — 0.7.
Qwen3.8 Flash is 14.1x cheaper: input $0.15/1M vs $2.50/1M tokens.
Qwen3.8 Flash supports a larger context: 1M vs 1M tokens.
Qwen3.8 Flash is newer: released 8/26/2026 vs 8/2/2026.
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Frequently Asked Questions
Which is better for coding — Qwen3.8 Flash or Qwen3.8 Max?
Which model is cheaper — Qwen3.8 Flash or Qwen3.8 Max?
Which has a larger context window — Qwen3.8 Flash or Qwen3.8 Max?
The Qwen3.8 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 Qwen3.8 Flash or Qwen3.8 Max page. See also the complete list of AI model comparisons.