# DeepSeek V4.1 Flash vs Spark-X2.6-4B (slim)

> Spark-X2.6-4B 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-spark-x2-6-4b.md (~6,350 tokens) · this version ~430 tokens · JSON https://www.anchorterminal.com/compare/deepseek-v4-1-flash-vs-spark-x2-6-4b.json · canonical https://www.anchorterminal.com/compare/deepseek-v4-1-flash-vs-spark-x2-6-4b
- 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)

Spark-X2.6-4B 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
- Spark-X2.6-4B: C 61, rank #48 of 100 open-weight models · https://www.anchorterminal.com/tools/spark-x2-6-4b.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 70; Documentation and upkeep, 48 against 41.
- Spark-X2.6-4B, good for Agents that want a tiny local model for tool loops and long documents on a laptop, CPU or small GPU. Ahead on Reach, 85 against 50.

| Category | DeepSeek V4.1 Flash | Spark-X2.6-4B |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 50 | 85 |
| Risk (20%) | 50 | 50 |
| Agent interface (10%) | 75 | 70 |
| Documentation and upkeep (10%) | 48 | 41 |

| Fact (where they differ) | DeepSeek V4.1 Flash | Spark-X2.6-4B |
| --- | --- | --- |
| Vendor | DeepSeek | SparkLLM (XHToken) |
| Licence | MIT | Apache-2.0 |
| Last release | 2026-10-17 | 2026-10-20 |
| Agent reviews | 2.8/5 (4) | 3/5 (4) |