# ChainForge vs Promptmetheus

**Leader by vioscaleAI score:** ChainForge

| Attribute | ChainForge | Promptmetheus |
|---|---|---|
| **vioscaleAI score** | 54.3 (54% (medium)) | 46.1 (75% (high)) |
| activity.commits_last_30d | 49 | - |
| adoption.dependent_repos | 0 | - |
| adoption.github_stars | 3,036 | - |
| content.faq | `[{"answer":"An open-source platform that enables users to experiment with multiple language models, compare outputs across different prompts and settings, and evaluate LLM quality without requiring extensive coding knowledge. It is indexed under Prompt Management.","source":"https://chainforge.ai","question":"What is ChainForge?","confidence":0.6},{"answer":"ChainForge is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.","source":"https://chainforge.ai","question":"Is ChainForge free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to ChainForge. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://chainforge.ai","question":"What platforms does ChainForge support?","confidence":0.6},{"answer":"Yes. ChainForge can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://chainforge.ai","question":"Can ChainForge be self-hosted?","confidence":0.6},{"answer":"We have confirmed 5 integrations for ChainForge, including OpenAI, Google Gemini, Alpaca, Llama and Dalai. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://chainforge.ai","question":"What does ChainForge integrate with?","confidence":0.6},{"answer":"Yes. ChainForge is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/ianarawjo/ChainForge","question":"Is ChainForge open source?","confidence":0.95}]` | `[{"answer":"A cloud-based platform where teams can compose prompts, test them across 150+ language models, configure custom evaluators, and track iterations with version control. It is indexed under Prompt Management.","source":"https://promptmetheus.com","question":"What is Promptmetheus?","confidence":0.6},{"answer":"Promptmetheus does not publish its prices. Pricing is quoted on request, across 2 plans (Free and Enterprise), so the figure depends on your seat count and requirements. We record this as a pricing-transparency signal rather than guessing a number. Pricing changes often, so verify at source before relying on it.","source":"https://promptmetheus.com","question":"How much does Promptmetheus cost?","confidence":0.6},{"answer":"We have confirmed browser-based access to Promptmetheus. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://promptmetheus.com","question":"What platforms does Promptmetheus support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Promptmetheus, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://promptmetheus.com","question":"Can Promptmetheus be self-hosted?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Promptmetheus. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Promptmetheus not holding them. Always confirm compliance directly before you rely on it.","source":"https://promptmetheus.com/security","question":"What security certifications does Promptmetheus have?","confidence":0.7},{"answer":"Promptmetheus is available worldwide. Its primary market is the United States.","source":"https://promptmetheus.com","question":"Where is Promptmetheus available?","confidence":0.5}]` |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true}` |
| description.long | A visual environment for systematically comparing and evaluating LLM prompts, models, and their responses through data flow workflows. | A collaborative workspace for prompt engineering with automated quality validation, real-time team syncing, detailed version tracking, and support for testing across a broad model catalog. |
| features.capabilities | `{"ab_testing":true,"pricing_model":"open-source-self-host","self_hostable":true,"deployment_model":"self-hosted","multi_step_flows":true,"non_engineer_editing":true,"multi_model_playground":true,"llm_judge_or_human_eval":true}` | `{"ab_testing":true,"pricing_model":"usage/seat-based-saas","self_hostable":false,"deployment_model":"managed-SaaS","multi_step_flows":true,"tracing_included":true,"versioning_model":"UI-hosted registry","diff_and_rollback":true,"non_engineer_editing":true,"multi_model_playground":true,"llm_judge_or_human_eval":true}` |
| integrations.count | 5 | 1 |
| integrations.list | `[{"name":"OpenAI"},{"name":"Google Gemini"},{"name":"Alpaca"},{"name":"Llama"},{"name":"Dalai"},{"name":"Ollama","native":true}]` | `[{"name":"LiteLLM SDK","native":true}]` |
| language.primary | TypeScript | - |
| license.spdx | MIT | - |
| market.availability | - | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://chainforge.ai","retrievedAt":"2026-10-13T11:17:53.413Z"}` | `{"type":"subscription","plans":[{"free":true,"name":"Free Trial","summary":"Free 7-day trial","features":["15 providers","150+ models","Automatic evaluators"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"7-day free trial","contactSales":false,"includedLimits":{"models":"150+","providers":"15"}},{"free":false,"name":"Paid","summary":"$19/month per additional user","features":["Shared workspace","Real-time collaboration"],"components":[{"kind":"per_unit","unit":"user","amount":19,"period":"month","currency":"USD"}],"description":"Per additional user","contactSales":false}],"summary":"Free 7-day trial, then $19/month per additional user","currency":"USD","freeTier":true,"sourceUrl":"https://promptmetheus.com","retrievedAt":"2026-10-02T16:17:21.052Z","freeTrialDays":7,"startingPrice":{"unit":"user","amount":19,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | freemium |
| pricing.price_level | free | mid |
| pricing.starting_price | - | `{"amount":19,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| release.cadence_days | 25 | - |
| release.history | `[{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.3.7","date":"2026-09-16T22:14:21Z","type":"stable","version":"v0.3.7"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.3.6","date":"2025-05-11T19:44:26Z","type":"stable","version":"v0.3.6"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.3.5","date":"2025-04-15T03:10:54Z","type":"stable","version":"v0.3.5"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.3.4","date":"2025-02-28T19:59:33Z","type":"stable","version":"v0.3.4"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.3.2.5","date":"2024-12-19T20:51:44Z","type":"stable","version":"v0.3.2.5"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.3.1.5","date":"2024-04-25T18:01:52Z","type":"stable","version":"v0.3.1.5"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.3.1","date":"2024-03-31T02:59:20Z","type":"stable","version":"v0.3.1"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.3","date":"2024-03-06T04:30:09Z","type":"stable","version":"v0.3"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/add-prettier","date":"2024-02-24T16:50:10Z","type":"stable","version":"add-prettier"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.2.9.5","date":"2024-01-20T01:49:21Z","type":"stable","version":"v0.2.9.5"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.2.8.9","date":"2024-01-08T23:53:59Z","type":"stable","version":"v0.2.8.9"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.2.8","date":"2023-12-13T19:03:09Z","type":"stable","version":"v0.2.8"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.2.6.5","date":"2023-10-23T20:55:41Z","type":"stable","version":"v0.2.6.5"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.2.6","date":"2023-08-27T19:43:31Z","type":"stable","version":"v0.2.6"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/docs","date":"2023-08-05T15:45:55Z","type":"stable","version":"docs"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.2.5","date":"2023-07-26T16:21:13Z","type":"stable","version":"v0.2.5"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.2.1.2","date":"2023-07-19T21:35:37Z","type":"stable","version":"v0.2.1.2"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.2.1","date":"2023-07-12T21:33:20Z","type":"stable","version":"v0.2.1"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.2","date":"2023-06-30T19:15:52Z","type":"stable","version":"v0.2"},{"url":"https://github.com/ianarawjo/ChainForge/releases/tag/v0.1.7.2","date":"2023-06-23T13:38:30Z","type":"stable","version":"v0.1.7.2"}]` | - |
| reliability.status_page | - | yes |
| security.gdpr | - | yes |
| security.pci | - | yes |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=chainforge&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (Prompt Management)

| Capability | ChainForge | Promptmetheus |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Versioning model | - | UI hosted registry |
| Diff and rollback | - | ✓ |
| Deploy without redeploy | - | - |
| Non engineer editing | ✓ | ✓ |
| Multi model playground | ✓ | ✓ |
| Ab testing | ✓ | ✓ |
| LLM judge or human eval | ✓ | ✓ |
| Multi step flows | ✓ | ✓ |
| Approval workflow | - | - |
| Tracing included | - | ✓ |
| Self hostable | ✓ | ✗ |
| Deployment model | Self hosted | Managed SaaS |
| Pricing model | Open source self host | Usage/seat based saas |

*Source: vioscaleAI. Generated 2026-10-16T07:52:57.827Z. "-" = undocumented, not absent.*