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Head-to-head · Prompt Management Software

Agenta vs Prompt Assay

  • Updated Oct 2026
  • Both researched from official sources
  • 7 checks side by side
Higher score Agenta #2 in Prompt Management Software 9.3/10 Free plan Free plan✓ 5 of 6 features Visit Agenta
Prompt Assay #5 in Prompt Management Software 9.0/10 Free plan Free plan✓ 5 of 6 features Visit Prompt Assay

Agenta leads on 1 check, Prompt Assay on 0, and 6 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAgenta · 9.3/10
  • Lowest starting priceAgenta · $29/mo
  • Free planboth

Agenta scores higher on our rubric for prompt management software: 9.3 against 9.0 out of 10; our editors rank them #2 and #5.

Agenta is cheaper to start at $29/user/mo against $49/user/mo.

Agenta is the better fit for teams wanting open-source prompt operations. Prompt Assay is the better fit for prompt engineers needing deep testing tools.

  • Agenta fits best

    Teams wanting open-source prompt operations

  • Prompt Assay fits best

    Prompt engineers needing deep testing tools

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Side by side

Feature Agenta 9.3/10 Visit ↗ Prompt Assay 9.0/10 Visit ↗
At a glance
Editor score 9.3 9.0
Ranking #2 in Prompt Management Software #5 in Prompt Management Software
Best for Teams wanting open-source prompt operations Prompt engineers needing deep testing tools
Pricing model Free plan + paid Free plan + paid
Starting price $29/mo (best) $49/mo
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Self-hosted Cloud
Platforms Web Web
Support Email, Live chat, Community Email, Docs
Compliance SOC 2, SSO/SAML, GDPR GDPR, SSO/SAML
Integrations 1,000+ integrations 3 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Agenta 5/6 · Prompt Assay 5/6
Prompt versioning ✓ ✓
Prompt testing ✓ ✓
Prompt templates ✓ ✓
Approval workflows Not checked yet Not checked yet
Access controls ✓ ✓
API or SDK access ✓ ✓
Specs
Model provider support Multi-provider Multi-provider
Our review
Pros
  • Versioning, branching, rollback, templates, and centralized prompt history
  • Test sets, evaluations, tracing, and side-by-side model comparisons
  • Hosted cloud, API, and Docker Compose self-hosted deployment
  • Evaluation suites with judge-based scoring and regression testing
  • Immutable version history with diffing, restore, and branching
  • REST API, TypeScript SDK, and multi-provider comparison
Cons
  • Hobby is limited to 2 team members and 5,000 agent runs monthly
  • Hobby trace data retention is limited to one week
  • Self-hosted open-source deployment uses Docker Compose
  • Provider API charges are separate from subscription fees
  • Free and Solo plans are limited to a single seat
  • SOC 2 and ISO 27001 attestations are not currently held
Our verdict

Agenta is an open-source AI application workspace for teams managing prompts, configurations, evaluations, agent workflows, and model operations. Its prompt registry provides centralized history, version comparison, branching, commit…

Read the review →

Prompt Assay is a web-based prompt engineering and evaluation workbench for prompt engineers, developers, researchers, and teams. It combines a syntax-highlighted editor with token budgets, cost estimation, linting, immutable version…

Read the review →
  1. AgentaPrompt Management Software 9.3Free plan
  2. Prompt AssayPrompt Management Software 9.0Free plan

Strengths and trade-offs

  • Agenta — where it wins

    • Versioning, branching, rollback, templates, and centralized prompt history
    • Test sets, evaluations, tracing, and side-by-side model comparisons
    • Hosted cloud, API, and Docker Compose self-hosted deployment

    Where it doesn't

    • Hobby is limited to 2 team members and 5,000 agent runs monthly
    • Hobby trace data retention is limited to one week
    • Self-hosted open-source deployment uses Docker Compose

  • Prompt Assay — where it wins

    • Evaluation suites with judge-based scoring and regression testing
    • Immutable version history with diffing, restore, and branching
    • REST API, TypeScript SDK, and multi-provider comparison

    Where it doesn't

    • Provider API charges are separate from subscription fees
    • Free and Solo plans are limited to a single seat
    • SOC 2 and ISO 27001 attestations are not currently held

More comparisons

All prompt management software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update