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Qdrant vs Chroma

Chroma scores higher on the AgentReady, 81/100 against 58/100. They differ on 14 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Qdrant. Qdrant is a high-performance vector search engine that helps build AI retrieval systems.

Chroma. Open-source search infrastructure for AI.

Where Qdrant is ahead

Qdrant passes clear canonical domain, and Chroma does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds adopt: official typescript sdk and official python sdk. Chroma misses those.

Where Chroma is ahead

Chroma passes public docs discoverable and llms-full.txt / full agent docs, and Qdrant does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: openapi / spec quality, request examples provided, response examples provided and errors and status codes documented. Qdrant misses those.

And on adopt, agent-compatible signup flow and programmatic credential creation. Qdrant misses those.

Finally, on operate, structured, predictable output, machine-readable errors and observable execution. Qdrant misses those.

What neither does

Both fail limits / constraints documented, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified. If your agent needs any of those, you will be building it yourself either way.

Score, pillar by pillar

The AgentReady splits into four pillars, scored separately, because a product can be easy to find and still impossible to adopt.

Discover. Chroma leads 93 to 80. Qdrant misses public docs discoverable, llms-full.txt / full agent docs; Chroma misses clear canonical domain.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Chroma leads 92 to 46. Qdrant misses openapi / spec quality, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented; Chroma misses limits / constraints documented.

Adopt. Both sit at 80/100 here. Qdrant misses agent-compatible signup flow, programmatic credential creation; Chroma misses official typescript sdk, official python sdk.

Operate. Chroma leads 59 to 24. Qdrant misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, observable execution, agent compatibility verified; Chroma misses retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

Qdrant does not publish a machine-readable starting price and has a free tier. Chroma does not publish one and has a free tier.

Signal by signal

Which to pick

Chroma clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: Qdrant and Chroma. Alternatives to each: Qdrant, Chroma.

An agent can fetch this as data: POST /v1/compare {"slugs": ["qdrant", "trychroma"]}