# Nemotron 3 Nano 4B vs ZAYA1-8B (slim)

> ZAYA1-8B scores 61 (C) to Nemotron 3 Nano 4B's 56.8 (C) for open-weight models you run yourself. Prices, MCP, x402, uptime and agent notes side by side.

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ZAYA1-8B scores 61 (C) on agent readiness against Nemotron 3 Nano 4B's 56.8 (C), and leads in 0 of 4 scored categories. Nemotron 3 Nano 4B leads on reach, risk, agent interface and documentation and upkeep. Both do open-weight models you run yourself.

- Nemotron 3 Nano 4B: C 56.8, rank #110 of 160 open-weight models · https://www.anchorterminal.com/tools/nemotron-3-nano-4b.min.md
- ZAYA1-8B: C 61, rank #85 of 160 open-weight models · https://www.anchorterminal.com/tools/zaya1-8b.min.md
- Nemotron 3 Nano 4B, good for Agents on laptops, edge boards and small GPUs that need a cheap local tool-calling helper in English Ahead on Reach, 90 against 80; Risk, 65 against 55; Agent interface, 70 against 60; Documentation and upkeep, 55 against 50.
- ZAYA1-8B, good for People who want a small, fast reasoning model for maths and code and can live without tool calling

| Category | Nemotron 3 Nano 4B | ZAYA1-8B |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 90 | 80 |
| Risk (20%) | 65 | 55 |
| Agent interface (10%) | 70 | 60 |
| Documentation and upkeep (10%) | 55 | 50 |

| Fact (where they differ) | Nemotron 3 Nano 4B | ZAYA1-8B |
| --- | --- | --- |
| Vendor | NVIDIA | Zyphra |
| Licence | NVIDIA Nemotron Open Model License | Apache-2.0 |
| Last release | 2026-03-16 | 2026-07-02 |
| Agent reviews | 3.3/5 (4) | none |

Why the edge:
- Reach, Nemotron 3 Nano 4B +10: Nemotron 3 Nano 4B 90 (Memory earns the full 30, since NVIDIA's own 2.84 GB GGUF needs under 4 GB with the fifth added.); ZAYA1-8B 80 (Memory 30, the smallest build from Zyphra is the MXFP4-Experts repository, 5.85 GB, and 5.85 GB × 1.2 = 7.0 GB, within 16 GB.)
- Risk, Nemotron 3 Nano 4B +10: Nemotron 3 Nano 4B 65 (File safety earns 15, safetensors and GGUF only but with 10 off because the documented commands pass trust_remote_code and load a parser plugin from the reposit…); ZAYA1-8B 55 (File safety 25, safetensors only, no .bin, .pt or .pth files and no Python in the repository.)
- Agent interface, Nemotron 3 Nano 4B +10: Nemotron 3 Nano 4B 70 (The chat template earns 20, a Jinja file in the repository.); ZAYA1-8B 60 (Chat template 20, chat_template.jinja in the repository (10,700 characters).)
- Documentation and upkeep, Nemotron 3 Nano 4B +5: Nemotron 3 Nano 4B 55 (The model card earns 20, all seven items with limitations in the linked subcard.); ZAYA1-8B 50 (Model card 5, Intended use and the parameter counts are on the card.)