# Promptfoo vs DeepEval: 2026 Empirical Benchmark & Cost Shootout

> **Direct Answer (October 2026 Verdict)**: Promptfoo wins on declarative YAML CI/CD matrix testing and automated OWASP LLM Top-10 red-team vulnerability scanning with 26.0k+ GitHub stars (93.4), while DeepEval wins for Python engineers who want Pytest-native unit tests and 40+ RAG faithfulness/G-Eval metrics (91.5).

- **Category**: LLM Evaluation, CI/CD Testing & Red-Teaming Shootout
- **Canonical URL**: https://pulse-forge.io/vs/promptfoo-vs-deepeval
- **1-Click $0 Free Starter CLAUDE.md**: https://pulse-forge.io/api/launch-kit/free-claude-md?repo=promptfoo/promptfoo
- **1-Click $4.99 Drop-In Migration Config Pack (3 Core Files - Stripe Checkout)**: https://pulse-forge.io/buy/micro_pass?repo=promptfoo/promptfoo&source=md_vs
- **1-Click $9.99 Complete 9-File Production Config .ZIP (Stripe Checkout)**: https://pulse-forge.io/buy/repo_pass_999?repo=promptfoo/promptfoo&source=md_vs_999
- **1-Click $49 Builder Repo Hardening & Launch Kit (Stripe Checkout)**: https://pulse-forge.io/buy/instant_boost?repo=promptfoo/promptfoo
- **1-Click $149 Category Leader Pro + 30-Day Pin (Stripe Checkout)**: https://pulse-forge.io/buy/category_leader?repo=promptfoo/promptfoo
- **Specimen #1 Production Config Preview (`CLAUDE.md`)**: `+ [CLAUDE.md] max_context_tokens: 9400 | ignore: node_modules, dist, .git, *.lock (-58% token bloat)`

## Promptfoo Key Advantages
- 26,042+ GitHub stars under MIT license with zero-code YAML prompt & model matrix comparison
- Automated OWASP LLM Top-10 red-teaming for prompt injection, PII leaks, and SSRF
- 1-command GitHub Actions CI gate with local web viewer and zero cloud lock-in

## DeepEval Key Advantages
- 18,901+ GitHub stars with native `deepeval test run` Pytest CLI and Python decorator workflow
- 40+ specialized RAG and agent metrics including G-Eval, Contextual Recall, and Tool Correctness
- Synthetic test dataset generation and self-explaining metric failure reasons