18.7
Vellum describes itself as a personal AI assistant that can read files, manage calendars, send email, run code, and control a computer.
Free planOpen sourceAndroidiOSWeb
Best AI Prompt Management Software in 2026
Prompt work can involve testing, tracking changes and managing who can access or deploy them. Vellum, Promptfoo and PromptHelm are among the entries to compare. Look at prompt testing, observability and version history alongside access controls, API access and deployment controls to see which workflow capabilities are specified. Included seats and free-plan details offer access context, while paid-from pricing adds…
28.2
Langfuse is an open-source AI engineering platform for teams debugging, analyzing, and iterating on AI agent applications.
Free planOpen sourceWebAPILinux
38.0
Agenta is an open-source workspace for teams to build, use, and automate AI coworkers.
Free planOpen sourceWebAPISelf-hosted
- 4
PromptHelm
PromptHelm is a prompt management platform for engineering teams that build with large language models.
Free planAndroidiOSWebAPI8.0From $39 a month - 5
Promptfoo
Promptfoo helps developers and enterprises evaluate prompts and test AI applications for security risks.
Free planOpen sourceWebAPILinuxmacOS7.8Free plan - 6
Braintrust
Braintrust is an observability platform for teams improving AI agents that run in production.
Free planWebAPISelf-hosted7.7From $249 a month - 7
SpacePrompts
SpacePrompts helps people and teams save, organize, test, version, and reuse AI prompts through a web service, browser extensions, and an API.
Free planWebAPIExtension7.4From $5 a month - 8
Maxim AI
Maxim AI is an evaluation and observability platform for simulating, assessing, and monitoring AI agents.
Free planWebAPISelf-hosted7.0From $29 a month - 9
PromptLayer
PromptLayer is a platform for teams that build and improve AI products.
Free planWebAPISelf-hosted7.0From $49 a month - 10
PromptHub
PromptHub is a community-driven platform for discovering, managing, versioning, testing and deploying prompts.
Free planWebAPI6.8From $12 a month - 11
PromptLens
PromptLens is a web platform for teams managing prompts, evaluating changes, and observing production LLM workflows.
Free planWeb6.7From $99 a month - 12
ProofHound
ProofHound automates prompt optimization for LLM classification workflows.
Free planWebAPISelf-hosted6.7From $29 a month - 13
Verdonz
Verdonz is a governed AI platform for investigating business questions across company data, workspace knowledge, and connected systems.
Free planWebAPISelf-hosted6.7From $199 a month - 14
Prompt Manage
Prompt Manage is a platform for teams to store, organize, version, and share AI prompts.
Free planWebAPI6.6From $20 a month - 15
ChainForge
ChainForge is an open-source visual workspace for designing prompt experiments and assessing large language model responses.
Free planWebSelf-hosted6.5Free plan - 16
HoneyHive
HoneyHive is an agent observability platform for teams that want to observe, evaluate, and improve AI agents in production.
Free planWebAPISelf-hosted6.4Free plan - 17
Prompteams
Prompteams is a prompt management system for developing and version-controlling AI prompts.
Free planWebAPI6.1Free plan - 18
PromptMetrics
PromptMetrics is a free, open-source, self-hosted registry for managing prompts and observing LLM activity.
WebAPILinuxmacOS6.1 - 19
PromptOps Manager
PromptOps Manager is a free, self-hosted, open-source registry for versioning, testing, and promoting large-language-model prompts.
Free planWebAPISelf-hosted6.1Free plan - 20
PromptVersions
Free planWeb6.1Free plan - 21
InsightPrompts
InsightPrompts is an enterprise platform for creating, testing, and governing certified AI prompts.
WebAPILinuxmacOS6.0 - 22
ANTS Platform
ANTS Platform is a web and API service for helping CIOs discover AI tools, agents, and workflows across an organization.
WebAPI5.7From $49 a month - 23
PromptWorks
PromptWorks is a free, Apache-2.0 open-source workspace for teams managing prompts, testing them in batches, and improving them with AI assistance.
WebAPISelf-hosted5.7 - 24
Apastra
Apastra is a file-based PromptOps framework and skill pack for versioning prompts and evaluating agent instructions.
Free planSelf-hosted5.6Free plan - 254.6