On November 5, Cognition launched Devin Review 2.0. Since August, per-PR review cost fell about 82%, with a typical review at about $0.25–$0.75 and median latency about 94 seconds (down from about 139). It adds automatic review rules, incremental re-reviews, configurable per-PR spend limits, and tighter Devin Autofix loops. New controls include Devin Review Ultra and Custom Reviewers (beta).

Key Takeaways

  • ✓Cost: ~82% cheaper per PR since August (~5x); typical ~$0.25–$0.75; ~$2.25 average per fixed bug across customers (vendor)
  • ✓Quality & speed: bugs found per PR rose 1.22→1.32 on average; median latency ~94s (~1.5x faster vs ~139s)
  • ✓Incremental reviews: default re-reviews only changed parts; ~80% of PRs cost under $1 including all pushes; configurable per-PR spend cap
  • ✓Loop: with Devin, findings can be fixed, dismissed, or escalated; Autofix available in Devin Cloud and Desktop
  • ✓Controls: Devin Review Ultra for higher-effort reviews; Custom Reviewers (beta) run specialized checks from your instructions
Cognition Ships Devin Review 2.0: ~82% Cheaper (~5x) Since August, Median Latency ~94s; Auto-Review, Autofix, Ultra & Custom Reviewers
🖼️Official Media
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Key Decision Metrics at a Glance

TL;DR Verdict
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Cost: ~82% cheaper per PR since August (~5x); typical ~$0.25–$0.75; ~$2.25 average per fixed bug across customers (vendor)
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🛠️ Ecosystem & IDERules
Devin 2.0 (Cognition)
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Project Links & Resources

Direct Access
Direct access to official project resources and documentation
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Devin Review 2.0 (official blog)
devin.ai/blog/devin-review-2
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Devin Review docs
docs.devin.ai/work-with-devin/devin-review
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Devin Review Autofix gallery
docs.devin.ai/use-cases/gallery/devin-review-autofix
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In-Depth Technical Analysis

Core Background & Industry Pain Points

As coding agents raise PR throughput, review becomes the bottleneck. On November 5 Cognition launched Devin Review 2.0 to make automatic review cheap enough to run on every PR by default, while guided tours shorten human time on large diffs.

Architecture Highlights & Internals

Cost cuts came from a better model mix across Devin Review plus harness optimizations. Incremental re-reviews now default to changed hunks only. Automatic rules can filter drafts, paths, branches, and labels, with a configurable per-PR spend cap. Paired with Devin, findings enter an investigate-then-fix/dismiss/escalate loop; Autofix is available in Devin Cloud and Desktop.

Authoritative Benchmarks & Measured Scores

No independent third-party replication was published. Vendor figures: about 82% cheaper since August, typical reviews $0.25–$0.75; bugs found per PR rose from 1.22 to 1.32; median latency about 94 seconds (from about 139); about 80% of PRs cost under $1 including all pushes; average cost per fixed bug about $2.25 across customers.

Developer Hands-on Guide

Start at devin.ai/blog/devin-review-2 and the Devin Review docs. Trigger with /devin review or from Devin Cloud/Desktop. Enable auto-review rules that exclude low-value PRs first; reserve Ultra or Custom Reviewers for sensitive paths. For Autofix, prefer Selected-only bot allowlists to avoid multi-bot loops.

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Up NextCognition acquires AI-native security company Corridor, folding its team into Devin Security
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