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POST
Create an evaluation

Authorizations

Authorization
string
header
required

A personal or service-account W&B API key.

Headers

Wandb-Entity
string

Accessible personal or team entity. Omit to use the API key's default entity.

Body

application/json
name
string
required

A short, scannable evaluation name. Prefer 2-5 words and avoid embedding the dataset name, every compared model, or configuration details.

Required string length: 1 - 128
dataset_id
string<uuid>
required
Pattern: ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
spec
object
required
participants
object[]
required
Minimum array length: 1
sample_size
integer
required
Required range: x <= 9007199254740991
reference
object

Response

Evaluation cases were queued.

id
string<uuid>
required
dataset_id
string<uuid>
required
name
string
required
spec
object
required
participants
object[]
required
sample_size
integer
required
status
enum<string>
required
Available options:
queued,
running,
completed,
failed,
stale
progress
object
required
created_at
string<date-time>
required
updated_at
string<date-time>
required
reference
object
results
object | null
failure_summary
object
Last modified on August 25, 2026