Ironbee Raw Code Review - Frontier - F2: leaderboard

Ironbee raw code review (2026): standalone model review of real pull requests, three repeated runs. Full uses 50 PRs and Frontier 10 PRs; no cohort pooling. Model-specific requested tiers remain explicit; precision, recall, F1 and F2 are separate metrics. Aggregated source fractions are multiplied by 100, with full precision retained. F2 (%).

Metric: F2 (%). Source: raw.githubusercontent.com. Saturation forecast: Rough model projection: around 2026. 6 models tracked.

Top models

#ModelScoreOverall rank
1Ironbee Study claude-fable-5.1 - low tier68.97
2Ironbee Study claude-fable-5.1 - xhigh tier63.45
3Ironbee Study claude-fable-5.1 - default tier62.66
4Ironbee Study gpt-6-astra - xhigh tier42.9
5Ironbee Study gpt-6-astra - low tier42.59
6Ironbee Study gpt-6-astra - default tier42.14

Interactive version: theaggregate.ai/benchmark?slug=ironbee-raw-code-review-frontier-f2 · How It Works · Data refreshed daily, snapshot 2026-10-21.