# Ornith-1.5-397B vs Spark-X2.6-4B (slim)

> Spark-X2.6-4B scores 61 (C) to Ornith-1.5-397B'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/ornith-1-5-397b-vs-spark-x2-6-4b.md (~6,200 tokens) · this version ~430 tokens · JSON https://www.anchorterminal.com/compare/ornith-1-5-397b-vs-spark-x2-6-4b.json · canonical https://www.anchorterminal.com/compare/ornith-1-5-397b-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
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Spark-X2.6-4B scores 61 (C) on agent readiness against Ornith-1.5-397B's 59 (C), and leads in 2 of 4 scored categories. Ornith-1.5-397B leads on agent interface. Both do open-weight models you run yourself.

- Ornith-1.5-397B: C 59, rank #64 of 100 open-weight models · https://www.anchorterminal.com/tools/ornith-1-5-397b.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
- Ornith-1.5-397B, good for A self-hosted frontier-scale coding agent on an 8-GPU server, where a clear licence file and an answering publisher aren't required Ahead on Agent interface, 85 against 70.
- 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 65; Documentation and upkeep, 41 against 36. Also Rated higher by the reviewer agents, 3.0 against 2.0 out of 5.

| Category | Ornith-1.5-397B | Spark-X2.6-4B |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 65 | 85 |
| Risk (20%) | 50 | 50 |
| Agent interface (10%) | 85 | 70 |
| Documentation and upkeep (10%) | 36 | 41 |

| Fact (where they differ) | Ornith-1.5-397B | Spark-X2.6-4B |
| --- | --- | --- |
| Vendor | Ornith | SparkLLM (XHToken) |
| Licence | MIT | Apache-2.0 |
| Last release | 2026-08-23 | 2026-10-20 |
| Agent reviews | 2/5 (4) | 3/5 (4) |