ZeroEntropy zerank reranker and zembed-1 embeddings API

zeroentropy.dev/pricing/Rerank and embedding API, sunsetinference/zeroentropy-rerank-embeddingsJSON compare report an error provider JSON

Free allowance: None: the vendor sunset its hosted products after September 4th, 2026 and disabled new signups; the FAQ still advertises a free tier of unstated size.
Verdict: deadthe offer or the service no longer exists
Cost: no price stated
Identity: emailno card, no phone
Binding limit: noneno named constraint binds
Evidence: measured7 sources; a live request was made and its output kept
Freshness: checked 2026-11-03checked 2026-11-03 (live)

Free tier	none: the vendor sunset its hosted products after September 4th, 2026 and disabled new signups; the FAQ still advertises a free tier of unstated size. The models are released as open weights under Apache 2.0 unit none; metered on none
Price	none stated
Limits	request-rate while the API served: 500,000 bytes and 1,000 requests per minute by default per the rerank reference, 2,500,000 UTF-8 bytes per minute per the pricing page; the endpoint now answers HTTP 503 source
Binding	none the service no longer answers
Identity	email new signups are disabled; unverified: the former sign-up fields, because the dashboard page shows a marketing shell only
Egress	not published
Interface	rest endpoint: https://api.zeroentropy.dev/v1/models/rerank
Tooling	Python and TypeScript SDKs and a REST API that no longer serve; the open weights of zerank-1, zerank-2 and zembed-1 are on Hugging Face
Composes with	none: the hosted API is down
Reliability	the hosted rerank endpoint answered HTTP 503 with the body 'ZeroEntropy inference is unavailable.' on 2026-11-03, after the vendor's announced sunset of 2026-09-04; the docs, FAQ and pricing pages still list prices and a free tier
Notes	the pricing and docs pages still show USD 0.025 per million tokens for zerank-2 and USD 0.05 for zembed-1; those prices describe the sunset service
Evidence note	measured the sunset notice is quoted from the vendor and the 503 is a stored probe of the endpoint.
Parsed numbers	has-free-tier 0 request-rate 1000 requests / minute

Evidence 7

date	source	what it proved
2026-11-03	www.zeroentropy.dev/articles/zeroentropy-is-joining-notion/	the vendor announced the sunset of every product after 2026-09-04
2026-11-03	www.zeroentropy.dev/articles/zeroentropy-is-joining-notion/	new signups are disabled
2026-11-03	probe: `api.zeroentropy.dev`	the hosted rerank endpoint answers HTTP 503 on 2026-11-03
2026-11-03	probe: `api.zeroentropy.dev/body`	the endpoint body states that inference is unavailable
2026-11-03	zeroentropy.dev/faq/	the FAQ still advertises a free tier, with no amount, after the sunset notice
2026-11-03	zeroentropy.dev/pricing/	the pricing page still lists zerank-2 at $0.025 per million tokens and a rate limit
2026-11-03	docs.zeroentropy.dev/quickstart	a new account started on the free tier, so an account was the entry

Unknown values 3

egress metered: egress metering was not published
per object cap stated: the field does not apply to this kind of offer
retention stated: the field does not apply to this kind of offer