DeepSeek-V4-Flash-0731vsQwen3.8-Max
DeepSeek-V4-Flash-0731 | Qwen3.8-Max | |
|---|---|---|
| Specifications | ||
Parameters | — | 2.4T |
Context window | — | 1M |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 38% | — |
Agentic coding SWE-Bench ProCan the AI fix real bugs in real software? It's handed actual problems from open-source projects and has to write code that genuinely solves them. Higher is better. | — | 67.7% |
Research reproduction PaperBenchreproducing the results of an ML research paper end to end | — | 93% |
Agentic terminal coding Terminal-Bench 2.1Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better. | 82.7% | 86.6%Best |
Professional tool use JobBenchTests the AI on professional workplace tasks that require using real work tools — the kind of multi-step jobs an office worker handles. Higher is better. | — | 53.4% |
Personal tool use Toolathlon-VerifiedTests how well the AI uses everyday personal tools and apps to get things done — a human-checked version of Toolathlon. Higher is better. | 70.3% | — |
Cybersecurity CyberGymTests the AI on cybersecurity challenges — finding and exploiting software weaknesses inside a safe sandbox. Higher is better. | 76.7% | — |
Agentic computer use OSWorld-VerifiedCan the AI actually operate a computer — clicking, typing, and using real apps — to finish tasks on its own? Higher is better. | — | 86.1% |
Business workflows AutomationBenchTests whether the AI can run real multi-step business workflows — the kind of end-to-end office processes companies want to automate — from start to finish. Higher is better. | 25.1% | — |
Chart reasoning CharXiv ReasoningCan the AI read and reason about complex charts and figures, not just text? Higher is better. | — | 88.4% |
Visual reasoning BabyVisionTests core visual reasoning — seeing and understanding images the way even young children can, which AIs often find surprisingly hard. Higher is better. | — | 82% |
| Overview | ||
| Company | DeepSeek | Qwen |
| Release date | Jul 31 2026 | Aug 3 2026 |
| Access | Proprietary | Proprietary |
Which is better: DeepSeek-V4-Flash-0731 or Qwen3.8-Max?
Qwen3.8-Max leads DeepSeek-V4-Flash-0731 on 1 of the 1 benchmark they both report (Terminal-Bench 2.1). DeepSeek-V4-Flash-0731 shipped 3 days before Qwen3.8-Max, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
On Terminal-Bench 2.1, Qwen3.8-Max leads at 86.6% vs DeepSeek-V4-Flash-0731 at 82.7%.
Frequently asked questions
DeepSeek-V4-Flash-0731 was released by DeepSeek on Jul 31 2026.
Qwen3.8-Max was released by Qwen on Aug 3 2026.
Qwen3.8-Max leads on Terminal-Bench 2.1 — DeepSeek-V4-Flash-0731 82.7% vs Qwen3.8-Max 86.6%.
Other comparisons
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