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gpt-4o-mini

tracelint checks agent traces for provable failures without an LLM judge
For developersOctober 6, 2026, 16:00

tracelint checks agent traces for provable failures without an LLM judge

A guest post on the Arize AI blog introduces tracelint, a small open-source linter that checks OpenInference agent traces for failures the trace itself can prove, and…

Jev model matches gpt-4o-mini judge on 897 of 1,000 turns, at lower cost
ModelsSeptember 30, 2026, 00:11

Jev model matches gpt-4o-mini judge on 897 of 1,000 turns, at lower cost

A model that returns probabilities for yes/no questions instead of writing text was 3.5× cheaper and 3.8× faster than a gpt-4o-mini judge on 1,000 real production turns…