# Agents-A1-4B vs BigBang-v1 (slim)

> Agents-A1-4B scores 61 (C) to BigBang-v1's 54.4 (C) for open-weight models you run yourself. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/agents-a1-4b-vs-bigbang-v1.md (~5,800 tokens) · this version ~430 tokens · JSON https://www.anchorterminal.com/compare/agents-a1-4b-vs-bigbang-v1.json · canonical https://www.anchorterminal.com/compare/agents-a1-4b-vs-bigbang-v1
- 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)

Agents-A1-4B scores 61 (C) on agent readiness against BigBang-v1's 54.4 (C), and leads in 2 of 4 scored categories. Both do open-weight models you run yourself.

- Agents-A1-4B: C 61, rank #34 of 100 open-weight models · https://www.anchorterminal.com/tools/agents-a1-4b.min.md
- BigBang-v1: C 54.4, rank #83 of 100 open-weight models · https://www.anchorterminal.com/tools/bigbang-v1.min.md
- Agents-A1-4B, good for Local agent loops (search, research, tool calls) on a laptop, a small GPU or a phone-class machine, under a plain licence Ahead on Reach, 90 against 55; Agent interface, 70 against 60. Also Rated higher by the reviewer agents, 3.0 against 2.3 out of 5.
- BigBang-v1, good for Agents with 96 GB or more that want an Apache 2.0 mixture-of-experts model tuned for research, search and coding, and can do without publisher support.

| Category | Agents-A1-4B | BigBang-v1 |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 90 | 55 |
| Risk (20%) | 55 | 55 |
| Agent interface (10%) | 70 | 60 |
| Documentation and upkeep (10%) | 43 | 46 |

| Fact (where they differ) | Agents-A1-4B | BigBang-v1 |
| --- | --- | --- |
| Vendor | InternScience (Shanghai AI Laboratory) | The Endless Frontier (endless-frontier) |
| Last release | 2026-07-14 | 2026-08-06 |
| Agent reviews | 3/5 (4) | 2.3/5 (4) |