Skip to content
aicoolies logo
LangChain logo

OpenEvals Pricing

freeopen source · MITlast verified September 6, 2026official site ↗

At a glance

Open-source evaluation library (MIT License) with $0 software license cost in Python and TypeScript. Operates locally with zero mandatory cloud dependencies. Users only pay for underlying LLM API token usage (e.g., OpenAI, Anthropic) if running LLM-as-a-judge evaluators. Optional LangSmith cloud logging offers a Free Developer tier (5,000 traces/mo), Plus ($39/user/mo), and custom Enterprise tiers.

Self-hosting cost

OpenEvals is open source under the MIT license. Self-hosting does not add a software license fee, but you still pay for infrastructure, operations, and any external model or API usage.

Free & cheaper Testing & QA

same category, free plan or open-source license

OpenLITopen source100% free and open source under the Apache-2.0 license ($0 self-hosted on Docker and Kubernetes). Features OpenTelemetry-native LLM tracing, GPU hardware metrics (NVIDIA/AMD/Intel), Prompt Hub, and security guardrails. Managed OpenLIT Cloud edition is available for hosted enterprise deployments.MCP Inspectoropen sourceFree and 100% open source under the MIT license ($0 software cost). mcp-inspector is the official Model Context Protocol developer testing suite, running entirely locally via npx/Node.js with no subscription tiers, cloud fees, or telemetry.Playwrightopen sourcePlaywright is a free and open-source end-to-end testing framework created by Microsoft under the Apache 2.0 license. It provides cross-browser automation across Chromium, Firefox, and WebKit without any licensing fees.Grafanaopen sourceGrafana is free and open-source under AGPL-3.0 for self-hosting. Grafana Cloud features a generous free tier (10k metrics series, 50GB logs/traces) and a Pro tier starting at $19/month plus pay-as-you-go usage.
OpenEvals overview →alternatives →

FAQ

How much does OpenEvals cost?

Open-source evaluation library (MIT License) with $0 software license cost in Python and TypeScript. Operates locally with zero mandatory cloud dependencies. Users only pay for underlying LLM API token usage (e.g., OpenAI, Anthropic) if running LLM-as-a-judge evaluators. Optional LangSmith cloud logging offers a Free Developer tier (5,000 traces/mo), Plus ($39/user/mo), and custom Enterprise tiers. Paid pricing starts at $39/user/mo.

Does OpenEvals have a free plan?

Yes — OpenEvals is completely free.

Can you self-host OpenEvals for free?

OpenEvals is open source under the MIT license. Self-hosting does not add a software license fee, but you still pay for infrastructure, operations, and any external model or API usage.

What are free or cheaper OpenEvals alternatives?

OpenLIT, MCP Inspector, Playwright are in the same category with a free plan or open-source license.

pricing is editorial catalog data (last verified September 6, 2026) — vendors change plans; confirm on the official site before you buy. Reuse this data under CC-BY 4.0 via /data.