AI InfraConfidence BUnited Statesactive

Braintrust

Evaluation, observability, and prompt tooling for production AI applications.

Official websitebraintrust.dev
RegionSan Francisco, United States
CategoryAI Infra
Funding statusSeries B · Undisclosed
Last updatedJun 9, 2026
Latest signalJun 9, 2026

Status timeline

Funding, product, customer, team, and correction signals
Mar 13, 2026Confidence A
Funding0 evidence links

Braintrust capital or status signal reviewed

Braintrust public source reviewed for capital or strategic-status timeline signal.

No source evidence matched to this event.
Mar 13, 2026Confidence A
Product0 evidence links

Braintrust product scope reviewed

Braintrust public product source reviewed for category placement and current operating focus.

No source evidence matched to this event.

Funding timeline

Amounts are shown only when disclosed and tied to evidence.
Mar 13, 2026

Series B

AmountUndisclosed
InvestorsAndreessen Horowitz, Greylock
EvidenceConfidence A
No source evidence matched to this round.

Source evidence

Public links, short factual summaries, and trust levels

Braintrust capital or status signal

Braintrust · official
Confidence A

Braintrust public capital or strategic-status source reviewed for stage and timeline signal.

Trust APublic review
Open source

Braintrust official product profile

Braintrust official site · official
Confidence A

Braintrust official source reviewed for product scope, operating focus, and category placement.

Trust APublic review
Open source

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