OpenRouter Stealth Model Spots Conflicting Deadlines in 3 Files, 28 Seconds

Professional_Run3390 · reddit · 2026-09-26

• The author tested Space Bunny, a stealth model on OpenRouter (free via OpenCode), on a source-grounding task: three short files, read-only pass, 28 seconds.
• Asked for every deadline with exact quotes, it correctly pulled the lease renewal (2027-03-14) and end dates (2027-04-30), plus the grant's letter-of-intent date (2027-01-09) and full deadline (2027-02-20, 5 p.m. ET), with word-for-word citations.
• The highlight is bad-evidence handling: since the grant checklist won't review anything received after 2027-02-13, the model flagged both dates and called Feb 13 the practical cutoff, while correctly noting the facilities memo has no concrete deadline.
• Author cautions it was one run on short files and asks how tools should handle conflicting dates.

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