Confident AI / DeepEval Alternative

The DeepEval alternative
without the flaky judges

DeepEval gives you pytest-style LLM tests. But when LLM judges score your CI runs, expect 15–20% flakiness. Refine AI's structural checks are deterministic — pass is pass, fail is fail, every time.

At a glance

Confident AI / DeepEval Refine AI
CI/CD gate (fails PR) Partial (flaky) ✓ Reliable
Evaluation method LLM-as-judge metrics Deterministic structural
CI flakiness ~15–20% 0%
Agent support Limited (single-call) Built for agents
LLM judge cost in CI High Zero
Code-first API ✓ pytest-style ✓ YAML assertions
Open source core ✓ DeepEval (MIT) ✓ Open source
Setup time Minutes 5 minutes

Why teams switch from DeepEval

DeepEval has a great API. These are the failure modes teams hit when using it at CI scale.

LLM judges make CI flaky

DeepEval's metrics (faithfulness, hallucination, contextual recall) call an LLM to score outputs. Teams report 15–20% flakiness: the same code passes Monday and fails Tuesday because the judge model returned slightly different scores. Refine AI's checks are deterministic — step_count is a number, either above threshold or not.

Built for RAG, not agents

DeepEval's metric library is designed around RAG pipelines: contextual recall, faithfulness, answer relevancy. Multi-step agents have entirely different failure modes — step explosions, unexpected tool calls, infinite loops. These aren't "output quality" problems. They're structural behavior regressions.

Judge cost multiplies fast in CI

Running 20 DeepEval metrics × 50 test cases × every PR = thousands of LLM API calls per week. At scale, the eval infrastructure costs more than the product. Refine AI's structural checks cost zero LLM tokens — they analyze run traces directly.

How Refine AI is different

Zero flakiness

Structural checks are deterministic. step_count either exceeded the threshold or it didn't — no variance from run to run.

Zero LLM judge cost

Assertions run against the trace directly. No API calls to a judge model means no cost and no latency added to CI.

Agent-native checks

Built for step counts, tool call sequences, loop detection, and cost-per-run — the failure modes agents actually have.

Automatic PR blocking

No need to watch test output. The GitHub check status says PASS or FAIL and the PR is blocked accordingly.

Who each tool is built for

Use Confident AI / DeepEval if…

  • You're building RAG pipelines and care about faithfulness/relevancy metrics
  • You want pytest-style code tests with a large LLM metric library
  • Output quality scoring is more important than structural behavior

Use Refine AI if…

  • You're shipping agents and need zero-flakiness CI gates
  • LLM judge cost is a concern at your PR volume
  • You need structural behavior assertions — step count, tool calls, loop risk

Get started in 5 minutes

Replace flaky LLM judge assertions with deterministic structural checks.

.github/workflows/agent-regression.yml
- name: Assert agent behavior
  uses: agentdbg/agentdbg-action@v1
  with:
    baseline: main
    checks: step_count,tool_calls,loop_risk,cost,latency

Zero flakiness. Zero judge cost.

Deterministic CI gates for agents. Your PR fails when behavior regresses — reliably, every time.

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