Can you trust Gemma 4 12B for space work?
By Anthony Vincent Caracappa, Founder and Self-Directed Space Researcher, Viventine Space Systems · updated
On its own, it earns "Trust it" on none of the jobs. Connected to Orbit Sentinel, trust it for baseline knowledge.
| Job | Closed-book | With Orbit Sentinel tools | n | ||||
|---|---|---|---|---|---|---|---|
| right / wrong | range | declined | right / wrong | range | declined | ||
| Catalog lookup | 0 / 68 | 0–9 | 32 | 78 / 15 | 64–87 | 8 | 45×3 |
| Constellation & fleet status | 6 / 58 | 2–20 | 36 | 42 / 41 | 29–57 | 17 | 43×3 |
| Debris & conjunction context | 10 / 34 | 4–23 | 56 | 52 / 18 | 37–66 | 30 | 42×3 |
| Regulatory & licensing | 11 / 44 | 4–25 | 44 | 13 / 26 | 6–27 | 61 | 40×3 |
| Company & market intelligence | 8 / 31 | 3–22 | 61 | 47 / 36 | 32–62 | 18 | 41×3 |
| Ground infrastructure | 0 / 45 | 0–15 | 55 | 19 / 58 | 8–39 | 23 | 22×3 |
| Baseline knowledge | 92 / 8 | 67–99 | 0 | 89 / 3 | 70–97 | 8 | 23×3 |
| Orbit Sentinel-only questions | 0 / 38 | 0–23 | 62 | 75 / 14 | 48–91 | 11 | 13×3 |
% right / % wrong per cell; color is the verdict (green trust it, amber verify, red don't use). Range is the 95% interval for % right, counting each question once; n is questions × runs for the tools track.
- How it was run
- Open weights, run locally (Ollama on one RTX 4090)
- Tool loop
- SpaceBench tool loop
- Runs
- 1 on its own, 3 with tools; rates pool all runs, ranges count each question once
- Verdict rule
- Trust it: wrong ≤ 5% and right ≥ 80%. Don't use it: wrong > 20%. Otherwise verify its answers.
Limits, harness differences and corrections: methodology.