GAC CASE STUDY

Creator strategy and casting validation 4x more engagement

Recently launched in Brazil (June 2025) and with an influencer-first strategy, GAC — China's 6th largest automaker — needed to connect its 5 brand territories (technology, lifestyle, economy, sports, and travel) with the right creator and ambassador profiles. Galaxies built 5 synthetic personas based on real research with the GAC audience and conducted a retroactive validation: the personas rated the 2025 and 2026 castings, with scores from 0 to 10, across three criteria — product fit, credibility, and conversion potential — validating the squad, anticipating content tests, and guiding each territory through GAC's lens before campaigns went live.

Recently launched in Brazil (June 2025) and with an influencer-first strategy, GAC — China's 6th largest automaker — needed to connect its 5 brand territories (technology, lifestyle, economy, sports, and travel) with the right creator and ambassador profiles. Galaxies built 5 synthetic personas based on real research with the GAC audience and conducted a retroactive validation: the personas rated the 2025 and 2026 castings, with scores from 0 to 10, across three criteria — product fit, credibility, and conversion potential — validating the squad, anticipating content tests, and guiding each territory through GAC's lens before campaigns went live.

4x

increase in engagement over one quarter of work

5%

average engagement in 2026, versus 1.3% in 2025

8.0

average score of the 2026 casting among the personas, versus 7.5 for the 2025 casting

Nexus

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The Nexus tools behind this case

What powers GAC's creator strategy and casting validation.

Synthetic Persona Casting Scores

Personas rate creator and ambassador candidates from 0–10 on product fit, credibility, and conversion potential.

Audience-Based Persona Research

Personas built on real research with the brand's own audience, not generic profiles.

Retroactive Campaign Validation

Personas can re-score past castings (e.g. 2025 vs. 2026) to benchmark improvement over time.

Multi-Territory Brand Mapping

Separate persona lenses for each brand territory — technology, lifestyle, economy, sports, travel — so casting fits the specific territory, not just the brand overall.

Pre-Campaign Content Testing

Content and creative can be tested against personas before a campaign goes live, ahead of real audience exposure.

Communication Personalization

Tailors messaging and positioning to the profile each persona represents.

"I didn't need to wait for the campaign to happen in order to evaluate it. I was able to run the test beforehand and build our narrative much more closely tied to what I heard from our consumer."

  Luis Fernando Guidorzi, Marketing and Communications Director · GAC Brazil

Company team

Every casting decision above was tested against the real audience before a single media dollar was spent.

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