EvalsHub Pricing 2026

EvalsHub is a freemium ai agent infrastructure tool that offers 6 key features including Natural-language rubrics with weights and thresholds, LLM-as-a-judge scoring tailored to specific use cases, Automatic regression detection and cross-model comparison. EvalsHub is an AI quality-assurance platform built around LLM-as-a-judge scoring, aimed at teams still catching regressions through manual spot-checks. You define rubrics as natural-language criteria with weights and thresholds — accuracy matched against ground truth, hallucination held above a confidence bar — and evaluations run continuously against your data, comparing models and flagging regressions before a release rather than after a user finds them. Results are deterministic scores rather than impressions, which is the stated point: the site frames it as bringing traditional engineering rigour to generative output, so you can compare GPT-, Claude- and Llama-family responses on the same rubric and see which passed and which hallucinated. Alongside evaluation there is an adversarial testing surface that red-teams the model automatically: heuristic and LLM-based detection of prompt injection hidden in user input, stress testing against evolving persona-based jailbreaks and DAN-style bypasses, and verification of content filtering, PII leakage and internal policy compliance. Tracing, datasets and experiments are the underlying units — spans, AI-generated dataset rows, experiments and projects — and CI/CD integration puts the whole thing in the release path. Pricing is published in full: a genuinely usable free tier, a $39/mo Pro tier that unlocks red-teaming, A/B prompt tests, online auto-evals and custom LLM judges, and a scoped enterprise tier.

✅ EvalsHub is a good choice if you need:

• •Natural-language rubrics with weights and thresholds
• •LLM-as-a-judge scoring tailored to specific use cases
• •Automatic regression detection and cross-model comparison
• •Red-team suite for prompt injection, jailbreaks and PII leakage
• •CI/CD integration and online auto-evals

💡 Value Assessment

With a free tier available, EvalsHub is an easy recommendation for anyone looking to try ai agent infrastructure tools without financial commitment. The paid plans offer good value for power users who need the additional features and higher usage limits.