Pydantic AI Pricing

open sourceopen source · MITlast verified August 26, 2026official site ↗

Plan	Price	Notes
Open Sourceofficial source ↗	$0checked 2026-08-26	100% free MIT-licensed Python agent framework with type validation, structured outputs, and multi-model support

structured from cited official pricing sources: “PydanticAI is an open-source, production-grade agent framework developed by the Pydantic team under the MIT license. It is free to use with zero licensing costs, requiring only BYOK model API keys or local LLM runtimes.”

Self-hosting cost

Pydantic AI 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 Agent Frameworks

same category, free plan or open-source license

Grok BotBeta access bundled with eligible SuperGrok Plus ($100/mo), Cursor Pro+ ($60/mo), or Cursor Teams ($40/seat/mo); custom pricing for enterprise deployments.Latitudeopen sourceLatitude is an open-source AI agent observability and evaluation platform under the MIT license. It offers a free self-hosted edition and a free cloud Starter tier (20,000 credits/mo), alongside a Pro plan at $99/month for growing teams and custom Enterprise pricing.Judgevalopen sourceJudgeval is an open-source Python SDK (Apache-2.0) for AI agent evaluation and tracing. Judgment Labs offers hosted enterprise agent behavior monitoring and evaluation platform access via custom quotes.Mem0open sourceOpen-source core (Apache-2.0) with $0 self-hosting. Mem0 Cloud Free includes 10k memories and 1k retrieval calls/month. Starter is $19/mo for 50k memories and 5k retrievals. Pro ($99-$249/mo) unlocks Graph Memory (Mem0ᵍ), memory consolidation, and 500k memories with 50k retrievals. Enterprise provides custom pricing for VPC/on-premise deployment, SOC 2/HIPAA compliance, SAML SSO, and 24/7 SLA.

Pydantic AI overview →alternatives →review: 85/100 →

FAQ

How much does Pydantic AI cost?

PydanticAI is an open-source, production-grade agent framework developed by the Pydantic team under the MIT license. It is free to use with zero licensing costs, requiring only BYOK model API keys or local LLM runtimes.

Does Pydantic AI have a free plan?

Yes — Pydantic AI is open source and free to use.

Can you self-host Pydantic AI for free?

Pydantic AI 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 Pydantic AI alternatives?

Grok Bot, Latitude, Judgeval are in the same category with a free plan or open-source license.

pricing is editorial catalog data (last verified August 26, 2026) — vendors change plans; confirm on the official site before you buy. Reuse this data under CC-BY 4.0 via /data.