No. 9 of 26 ·Prompt Management Software

PromptLens

Web · paid plans from $99/mo

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

PromptLens is ranked #9 of 26 in prompt management software on Freedom251. It runs on Web. There is a free plan. Paid plans start at $99/mo.

PromptLens plans and pricing

All plans

Free Free $0 per organization / month 2 members · 3 projects · 3 prompts · up to 10 test cases per dataset · 50 evaluation runs per member per 24 hours · 50 playground calls per hour promptlens.io · 2 Oct 2026

Pro $99/mo $99 per organization / month Unlimited members · 10 projects · 10 prompts · up to 500 test cases per dataset · 100 evaluation runs per member per 24 hours · 500 playground calls per hour · $50 welcome model credits that never expire · priority email support promptlens.io · 2 Oct 2026

Teams Not published Custom volume pricing Custom project, prompt, and dataset limits · higher evaluation and playground volume · provider policy controls · security review · dedicated support promptlens.io · 2 Oct 2026

Compared on prompt management software

Free plan: Yes
Prompt testing: Yes
Access controls: Yes

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The record

What it does: PromptLens provides prompt management, evaluations, and observability for teams shipping production LLM workflows.
Evaluation workflow: Teams can compare a candidate prompt version with the production version on the same dataset, then review score changes, outputs, and failures.
Scoring: An LLM judge compares each output to an expected answer and returns pass or fail with a short explanation.
Prompt management: PromptLens lets users version prompts and publish the version their application needs through a retrieval API.
Observability: The site says its observability product traces production model calls, tools, and retrieval, including timing, errors, usage, and cost.
Model providers: The homepage lists OpenAI, Anthropic, Google, xAI, Meta, DeepSeek, Mistral, Cohere, and Amazon among the model providers teams can test across.
Model access: Organizations can connect a provider API key or use purchased credits to run models through OpenRouter without adding a key.
Shared reports: Anyone with a shared report link can open it without an account or paid seat, and shared report links are unlimited on every plan.
Release control: Evaluations provide evidence and warnings for release decisions, but they are not an automatic CI release gate.
Security: The privacy policy says sensitive data is encrypted at rest, data is transmitted over HTTPS, and access to user data is restricted to authorized personnel.
Data retention: Users can delete datasets, prompts, and experiments at any time; after account deletion, PromptLens says it will delete the user's data within 30 days.
Cookies: The privacy policy says PromptLens uses essential cookies for sessions and preferences and does not use tracking or advertising cookies.
Support: The Free plan includes email support, Pro includes priority email support, and Teams includes dedicated support.
Availability: The evaluations page says product access is subject to early-access approval.
Price from: $99/mo

Where it ranks on Freedom251

Best Prompt Management Software in 2026#9 of 26
Best AI Prompt Management Software in 2026#12 of 25

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Sources

promptlens.io· checked 2 Oct 2026
promptlens.io/pricing· checked 2 Oct 2026
promptlens.io/products/evaluations· checked 2 Oct 2026
promptlens.io/privacy· checked 2 Oct 2026