Brand report · September 2026

Braintrust: AI Visibility Report

The Perception Lab measured Sep 25, 2026

92%of aided recommendations are qualified, not a flat yes

70%of answers still describe Braintrust as prompt-testing and evals tool

83%forced-choice win rate vs 10 named competitors

50%of answer citations are competitor-authored pages

The full lab: aided verdicts, the forced-choice matrix, and whose content grounds the answers →

When buyers ask ChatGPT, Claude, and Gemini about llm & agent evals, Braintrust ranks #3 of 15, a Visibility Score of 36 in LLM & Agent Evals .

These rankings are measured from what the three models know from training, not a live web search. The live-web grounded surface is rolling out across the index. Methodology.

How AI sees Braintrust

Solid eval-tool contender, but first-pick rate tells the real story.

Where it wins. Braintrust lands rank 3 of 15 in LLM & Agent Evals with a 44% mention rate, meaning AI models surface it reliably when buyers ask about evaluation tooling. Its strongest foothold is startup and small-team prompts, where it competes visibly against the category leaders.

Where it loses. A 15% first-pick rate means buyers hear the name but typically hear LangSmith or Weights & Biases first, and Braintrust's entire AI presence rests on this single category with no adjacent territory to fall back on.

AI-generated analysis of the September 2026 measurements.

LLM & Agent Evals · #3 of 15

36 / 100 first snapshot (September 2026)

44%

mention rate (72 answers)

3

avg. position

15%

first pick

8%

share of voice

First snapshot: September 2026. The trend line appears with the second monthly measurement; no modeled history.

ChatGPT

32

Claude

66

Gemini

9

One of the index's bigger model splits: see where the models disagree →

How the models portray Braintrust

Being named is not the same as being recommended. Each mention is graded endorsed (a strong pick), listed (a neutral option), or caveated (named with a reservation).

56% 31% 13%

endorsed · 95% band 39–72% listed caveated graded across 32 mentions in LLM & Agent Evals answers

Prompt themes Braintrust would want to own

Share of each theme's answers that mention Braintrust. Hover a row for the exact prompt. Compare shapes on the head-to-head page.

8/9 · #1×3

5/9 · #1×3

5/9

5/9

If you could pick one

4/9 · #1×2

Best overall

3/9 · #1×2

Enterprise pick

1/9

Budget & alternatives

1/9 · #1×1

Most co-mentioned competitors

Share of Braintrust's mentions where the AI models name this brand in the same answer. That is the real competitive set in the AI channel.

LangSmith

88%

Weights & Biases

66%

Promptfoo

41%

Ragas

41%

Langfuse

34%

Arize AI

31%

Scores are measured from real AI answers, refreshed monthly. Methodology.

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