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Head-to-head · Prompt Engineering Tools

LangSmith vs Agenta

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score LangSmith #1 in Prompt Engineering Tools 9.2/10 Free plan Free plan✓ 0 of 4 features Visit LangSmith
Agenta #4 in Prompt Engineering Tools 8.8/10 Free plan Free plan✓ 1 of 4 features Visit Agenta

LangSmith leads on 0 checks, Agenta on 1, and 2 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreLangSmith · 9.2/10
  • Lowest starting priceAgenta · $29/mo
  • Free planboth
  • Most featuresAgenta · 1 of 4

LangSmith scores higher on our rubric for prompt engineering tools: 9.2 against 8.8 out of 10; our editors rank them #1 and #4.

Agenta is cheaper to start at $29/mo against $39/mo.

LangSmith is the better fit for teams building with LangChain or LangGraph. Agenta is the better fit for teams managing prompt versions across providers.

  • LangSmith fits best

    Teams building with LangChain or LangGraph

  • Agenta fits best

    Teams managing prompt versions across providers

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature LangSmith 9.2/10 Visit ↗ Agenta 8.8/10 Visit ↗
At a glance
Editor score 9.2 8.8
Ranking #1 in Prompt Engineering Tools #4 in Prompt Engineering Tools
Best for Teams building with LangChain or LangGraph Teams managing prompt versions across providers
Pricing model Free plan + paid Free plan + paid
Starting price $39/seat/mo $29/mo (best)
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Self-hosted Cloud, Self-hosted
Platforms Web Web
Support Community, Email, Tickets, Docs · 24/7 Email, Live chat, Community
Compliance SOC 2, ISO 27001, GDPR, HIPAA, SSO/SAML SOC 2, SSO/SAML, GDPR
Integrations 7 integrations 1,000+ integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features LangSmith 0/4 · Agenta 1/4
Prompt versioning Not checked yet ✓ (best)
Prompt playground Not checked yet Not checked yet
Automated evaluations Not checked yet Not checked yet
Prompt optimization Not checked yet Not checked yet
Specs
Model providers Not checked yet Not checked yet
Deployment integrations Not checked yet Not checked yet
Our review
Pros
  • Combines tracing, evaluations, prompt versioning, and monitoring.
  • Supports agent and tool-call tracing alongside human feedback workflows.
  • Offers cloud, hybrid, and self-hosted deployment options.
  • Branch, compare, and roll back prompts with centralized history
  • Test sets, benchmark suites, and evaluation workflows in one workspace
  • Supports multiple providers, REST API, Python SDK, and self-hosting
Cons
  • Developer is limited to one seat and includes community support.
  • Trace use beyond plan allowances incurs pay-as-you-go charges.
  • Enterprise pricing is custom.
  • Hobby limits teams to 2 members and 5,000 agent runs per month
  • Hobby and Pro trace retention is limited to 1 week and 1 month
  • Business starts at $299 per month for SSO and role-based access control
Our verdict

LangSmith brings development, testing, evaluation, monitoring, and deployment workflows for LLM applications and agents into one platform. It is a natural fit for teams using LangChain or LangGraph, while also supporting applications built…

Read the review →

Agenta brings prompt and configuration management together with tools for testing, evaluation, tracing, and agent workflows. Its prompt registry keeps centralized history, while branching, commit messages, comparison, and rollback help…

Read the review →
  1. LangSmithPrompt Engineering Tools 9.2Free plan
  2. AgentaPrompt Engineering Tools 8.8Free plan

Strengths and trade-offs

  • LangSmith — where it wins

    • Combines tracing, evaluations, prompt versioning, and monitoring.
    • Supports agent and tool-call tracing alongside human feedback workflows.
    • Offers cloud, hybrid, and self-hosted deployment options.

    Where it doesn't

    • Developer is limited to one seat and includes community support.
    • Trace use beyond plan allowances incurs pay-as-you-go charges.
    • Enterprise pricing is custom.

  • Agenta — where it wins

    • Branch, compare, and roll back prompts with centralized history
    • Test sets, benchmark suites, and evaluation workflows in one workspace
    • Supports multiple providers, REST API, Python SDK, and self-hosting

    Where it doesn't

    • Hobby limits teams to 2 members and 5,000 agent runs per month
    • Hobby and Pro trace retention is limited to 1 week and 1 month
    • Business starts at $299 per month for SSO and role-based access control
  • LangSmith9.2/10 · Free plan

    A broad LLM workflow platform, especially suited to teams using LangChain or LangGraph.

    Visit LangSmithFull verdict →
  • Agenta8.8/10 · Free plan

    A multi-provider prompt workspace with version control, testing, and hosted or self-hosted options.

    Visit AgentaFull verdict →

More comparisons

All prompt engineering tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update