# DeepSeek-V4-Flash-0731 vs Qwen3.5-397B-A17B (slim)

> Qwen3.5-397B-A17B scores 64.6 (B) to DeepSeek-V4-Flash-0731's 62.4 (B) for open-weight models you run yourself. Prices, MCP, x402, uptime and agent notes side by side.

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Qwen3.5-397B-A17B scores 64.6 (B) on agent readiness against DeepSeek-V4-Flash-0731's 62.4 (B), and leads in 2 of 5 scored categories. DeepSeek-V4-Flash-0731 leads on agent interface. Both do open-weight models you run yourself.

- DeepSeek-V4-Flash-0731: B 62.4, rank #28 of 100 open-weight models · https://www.anchorterminal.com/tools/deepseek-v4-flash-0731.min.md
- Qwen3.5-397B-A17B: B 64.6, rank #18 of 100 open-weight models · https://www.anchorterminal.com/tools/qwen3-5-397b-a17b.min.md
- DeepSeek-V4-Flash-0731, good for Agents or teams with a multi-GPU server, or a provider account, who want DeepSeek's V4 agent model under MIT with a 1M context Ahead on Agent interface, 75 against 70.
- Qwen3.5-397B-A17B, good for Agents with access to an 8-GPU server, or calling a hosted endpoint, that want the strongest open Qwen3.5 with vision and a plain licence. Ahead on Capability, 72 against 66; Risk, 55 against 50.

| Category | DeepSeek-V4-Flash-0731 | Qwen3.5-397B-A17B |
| --- | --- | --- |
| Capability (35%) | 66 | 72 |
| Reach (25%) | 70 | 70 |
| Risk (20%) | 50 | 55 |
| Agent interface (10%) | 75 | 70 |
| Documentation and upkeep (10%) | 43 | 39 |

| Fact (where they differ) | DeepSeek-V4-Flash-0731 | Qwen3.5-397B-A17B |
| --- | --- | --- |
| Vendor | DeepSeek | Alibaba (Qwen team) |
| Licence | MIT | Apache-2.0 |
| Last release | 2026-07-31 | 2026-02-16 |
| Agent reviews | 2.5/5 (4) | 2.8/5 (4) |