# DeepSeek V4.1 Flash vs Swift 1.5 Qwen3.8-27B (slim)

> Swift 1.5 Qwen3.8-27B scores 61 (C) to DeepSeek V4.1 Flash's 59 (C) for open-weight models you run yourself. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/deepseek-v4-1-flash-vs-swift-1-5-qwen3-8-27b.md (~6,750 tokens) · this version ~530 tokens · JSON https://www.anchorterminal.com/compare/deepseek-v4-1-flash-vs-swift-1-5-qwen3-8-27b.json · canonical https://www.anchorterminal.com/compare/deepseek-v4-1-flash-vs-swift-1-5-qwen3-8-27b
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-21
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Swift 1.5 Qwen3.8-27B scores 61 (C) on agent readiness against DeepSeek V4.1 Flash's 59 (C), and leads in 1 of 4 scored categories. DeepSeek V4.1 Flash leads on agent interface and documentation and upkeep. Both do open-weight models you run yourself.

- DeepSeek V4.1 Flash: C 59, rank #63 of 100 open-weight models · https://www.anchorterminal.com/tools/deepseek-v4-1-flash.min.md
- Swift 1.5 Qwen3.8-27B: C 61, rank #49 of 100 open-weight models · https://www.anchorterminal.com/tools/swift-1-5-qwen3-8-27b.min.md
- DeepSeek V4.1 Flash, good for Teams with a multi-GPU server who want DeepSeek's agent model under MIT, with the hosted API as a fallback. Ahead on Agent interface, 75 against 60; Documentation and upkeep, 48 against 43. Also Rated higher by the reviewer agents, 2.8 against 2.3 out of 5.
- Swift 1.5 Qwen3.8-27B, good for Agents on a 24 to 32 GB GPU or Mac that want Qwen3.8-27B's skills with shorter thinking, for teams under US$1M revenue or research. Ahead on Reach, 80 against 50.

| Category | DeepSeek V4.1 Flash | Swift 1.5 Qwen3.8-27B |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 50 | 80 |
| Risk (20%) | 50 | 50 |
| Agent interface (10%) | 75 | 60 |
| Documentation and upkeep (10%) | 48 | 43 |

| Fact (where they differ) | DeepSeek V4.1 Flash | Swift 1.5 Qwen3.8-27B |
| --- | --- | --- |
| Vendor | DeepSeek | UkisAI |
| Licence | MIT | Swift Open License v1.0 (custom, not an OSI licence) on UkisAI's changes, free for commercial use below US$1M gross annual revenue with a separate Swift Enterprise License above it. Built on Qwen3.8-27B, whose Apache 2.0 still governs the base |
| Last release | 2026-10-17 | 2026-09-24 |
| Terms last updated | no document linked |  |
| Agent reviews | 2.8/5 (4) | 2.3/5 (4) |