LightOn published ColGrep-Agent weights, code, integrations and author-run evaluations.
ColGrep-Agent opens a local model for repository search
2026-10-12Verified announcementTRIAL
LightOn released ColGrep-Agent, an Apache-2.0 local model and toolchain for searching repositories before a coding agent edits them. The model card reports five-seed localization tests on 300 instances per benchmark and an author study across 52 questions in 13 repositories. Public weights, code and integrations are available, but downstream patch success, total latency and compute have not been independently established.
Official · AnnouncementColGrep-Agent: A coding agent that searches before it thinksOfficial · ReferenceNext Plaid repository
Availability: Apache-2.0 weights and code; integrations documented for Claude Code, Codex and OpenCode
What this means for you
For coding-agent teams, a small local search specialist can reduce the source code sent to a frontier model and make repository context selection inspectable. Better file localization does not guarantee a correct patch, so evaluate end-to-end success and total resource cost rather than token savings alone.
Evidence & related material
Technical details & scores
| Availability | Apache-2.0 weights and code; integrations documented for Claude Code, Codex and OpenCode |
|---|---|
| Localization Evaluation | five seeds and 300 instances per benchmark; author-reported SWE-bench Lite file F1 76.18 and line F1 19.92 |
| Integration Study | author-reported 34.3% token reduction across 52 questions and 13 repositories |
| Runtime | Q8 package is approximately 2.5 GB; repository access is read-only during search |
| Limits | model name says 2B while the model card reports roughly 3B parameters; no independent end-to-end patch, latency or compute comparison |
| Time Basis | announcement gives 2026-10-12 without time of day; model repository was created 2026-10-03 and updated 2026-10-11 |
Technical impact 3
Engineering value 4
Adoption signal 2
Maturity 3
Verification cost 3
Risk 2