# OpenAI Evals vs Promptfoo

**Leader by Vioscale score:** Promptfoo

| Attribute | OpenAI Evals | Promptfoo |
|---|---|---|
| **Vioscale score** | 44.8 (30% (low)) | 54.4 (55% (medium)) |
| activity.commits_last_30d | 0 | - |
| adoption.dependent_repos | 1 | - |
| adoption.github_stars | 19,257 | - |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true,"hybrid":true,"on_prem":true,"self_hosted":true}` |
| description.long | A framework that lets developers create and run evaluations to measure LLM performance, providing both pre-built benchmarks and tools to write custom tests tailored to specific use cases without requiring proprietary evaluation infrastructure. | A comprehensive LLM security testing solution that automatically scans for vulnerabilities such as prompt injections and jailbreaks through dynamic red teaming. Offers both open-source software for local testing and enterprise SaaS with team collaboration, continuous monitoring, and compliance dashboards. |
| features.capabilities | `{"pricing_model":"free_open_source","architecture_model":"open_source_cli","mit_or_apache_permissive_oss_license":true,"llm_as_a_judge_prompt_grading_framework":true,"ci_cd_github_actions_pipeline_blocking_gates":true,"deterministic_regex_and_json_schema_assertions":true,"synthetic_test_dataset_generation_from_documents":true}` | `{"soc2_type_ii":true,"self_hostable":true,"versioning_model":"UI-hosted registry","non_engineer_editing":false,"llm_judge_or_human_eval":true,"llm_as_a_judge_prompt_grading_framework":true,"ci_cd_github_actions_pipeline_blocking_gates":true,"deterministic_regex_and_json_schema_assertions":true,"red_teaming_and_adversarial_vulnerability_scanning":true}` |
| integrations.count | 3 | 6 |
| integrations.list | `[{"name":"OpenAI API"},{"name":"Snowflake"},{"name":"GitHub"}]` | `[{"name":"OpenAI"},{"name":"Anthropic"},{"name":"Google (Gemini)"},{"name":"DeepSeek"},{"name":"MCP (Model Context Protocol)"},{"name":"CI/CD pipelines"},{"name":"Webhooks"},{"name":"Agent frameworks"},{"name":"CI/CD platforms"},{"name":"GitHub"},{"name":"Python providers"}]` |
| language.primary | Python | - |
| market.availability | - | `{"hqCountry":"US","primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"free","summary":"Free and open-source","freeTier":true,"sourceUrl":"https://github.com/pricing","retrievedAt":"2026-08-21T11:08:00.118Z"}` | `{"type":"hybrid","plans":[{"free":true,"name":"Community","features":["All LLM evaluation features","All model providers and integrations","Red teaming (10k probes/month)","Custom integration with your own app","Run locally or self-host on your own infrastructure","Vulnerability scanning","Community support"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Open-source version for individual developers and small teams","contactSales":false,"includedLimits":{"red_teaming_probes":"10k/mo"}},{"free":false,"name":"Enterprise","features":["All Community features","Custom red teaming limits","Team sharing & collaboration","Continuous monitoring","Centralized security/compliance dashboard","Customizable attack profiles and target settings","SSO and granular permission profiles","Promptfoo API access","Managed cloud deployment","Professional services support","Priority support & SLA guarantees"],"description":"Managed cloud platform with team collaboration, continuous monitoring, and compliance features","contactSales":true},{"free":false,"name":"On-Premise","features":["Complete data isolation","On-premise deployment"],"description":"Custom deployment for organizations requiring full control over infrastructure","contactSales":true}],"summary":"Free open-source Community tier; Enterprise and On-Premise plans with custom pricing","currency":"USD","freeTier":true,"sourceUrl":"https://www.promptfoo.dev/pricing/","retrievedAt":"2026-08-19T18:21:49.377Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | freemium |
| pricing.price_level | free | low |
| pricing.transparent | yes | no |
| security.disclosure_policy | yes | - |
| security.iso27001 | - | yes |
| security.soc2 | - | yes |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fopenai%2Fevals&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (AI Evals Testing)

| Capability | OpenAI Evals | Promptfoo |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Architecture model | Open source CLI | - |
| LLM as a judge prompt grading framework | ✓ | ✓ |
| Specialized rag metrics faithfulness context relevance | - | - |
| Deterministic regex and json schema assertions | ✓ | ✓ |
| Synthetic test dataset generation from documents | ✓ | - |
| Ci cd github actions pipeline blocking gates | ✓ | ✓ |
| Red teaming and adversarial vulnerability scanning | - | ✓ |
| Multi model side by side ab regression testing | - | - |
| Human in the loop hitl annotation UI | - | - |
| Dashboard analytics for metric drift over time | - | - |
| SOC2 type ii | - | ✓ |
| Mit or apache permissive oss license | ✓ | - |
| Pricing model | Free open source | - |

*Source: Vioscale. Generated 2026-09-01T14:44:15.113Z. "-" = undocumented, not absent.*