Prove the lift · AI model performance evaluation

gemini-2.5-pro vs deepseek-r1

+16-point lift for gemini-2.5-pro on code-review-bench

Test summary

This benchmark evaluates gemini-2.5-pro against deepseek-r1 on the code-review-bench v2 dataset (5 rows), scored by an LLM-as-judge (gpt-4o-mini). gemini-2.5-pro reached a 66% pass rate versus 50% for deepseek-r1 — a +16-point lift.

Base model
deepseek-r1
via deepseek · 50% pass rate
Refined model
gemini-2.5-pro
via google · 66% pass rate · 0.9s p95
Base pass rate
50%
Refined pass rate
66%
Refined p95
0.9s
Est. tokens saved
11.2K
+0pts
refined beats base on 5 rows
0%
Base model
0%
Invoked-refined
1 improved0 regressed4 unchanged

Per-row results

1Note a broken null-check after a refactor100%100%0
2Flag an off-by-one in a pagination loop100%100%0
3Catch an unsanitized input reaching a SQL string0%0%0
4Detect a missing await on an async DB write0%100%+100
5Identify an N+1 query in an ORM call site0%0%0
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