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The following limits apply to accounts, indexes and vectors (as specified):

FeatureCurrent Limit
Indexes per account100 indexes beta
Maximum dimensions per vector1536 dimensions beta
Maximum vector ID length64 bytes
Metadata per vector10KiB beta
Maximum returned results (topK)20 beta
Maximum upsert batch size (per batch)1000 beta (Workers) / 5000 beta (HTTP API)
Maximum index name length63 bytes
Maximum vectors per index200,000 beta
Maximum namespaces per index1000 namespaces beta
Maximum namespace name length63 bytes

beta This limit is beta only and is expected to increase over time.