Evidence

Reports, validation studies, and articles — see what Chorus produces and how the method holds up.

Three panels of twelve personas connected to a second-by-second reaction heatmap beside a video player
Report 36 personas

We tested 7 UK government ads on 36 synthetic personas

Sep 21, 2026

Seven UK government ads on teaching, pensions and Stoptober, each watched by 12 synthetic personas. Watch the ads, see the scores and read what they said.

  • Get Into Teaching: all 12 personas preferred the ad that follows a pupil through school. It scored 62 out of 100 against 37.
  • Workplace pensions: a tie at 57 each. One ad makes the better case, the other gives the clearer next step.
Read
Birla Opus Paints 30s ad evaluation — 10 Indian personas, score breakdown across eight rubrics
Report 10 personas

Birla Opus Paints 30s Ad — Indian Persona Evaluation

Apr 30, 2026

10 Indian personas score Birla Opus's airport launch ad. The 16-year warranty hooks attention; the 'Main bhi' crowd undermines belief. Overall 53/100.

  • Strong attention capture (16-year warranty hooks every persona within 3 seconds)
  • Bandwagon 'Main bhi' execution backfires with analytical and rural viewers
Read
Full creative-testing dashboard cover — grid of charts showing per-persona signals, scene heatmap, and timeline overlay for the Birla Opus 'Main bhi' airport spot
Report 10 personas

Birla Opus Paints 'Main bhi' — Full Creative-Testing Dashboard

Apr 30, 2026

Chorus's 10-persona creative-testing dashboard for Birla Opus's April 2026 'Main bhi' airport ad — emotion arc, per-persona signals, scene heatmap, and timestamped edit suggestions.

  • Attention peaks at 0:14–15 (1.0/1.0) on the wide crowd shot. The ad's measured visual climax sits squarely on the proof mechanic the panel found least convincing.
  • Three cross-persona convergence beats: warranty claim at 0:03 (0.98 agreement), 'Main bhi' chorus reads theatrical at 0:08 (0.91), Aditya Birla brand reveal restores trust at 0:23 (0.89).
Read
Full creative-testing dashboard cover — grid of charts showing per-persona signals, scene heatmap, and timeline overlay for the ITC Mangaldeep 'Sixth Sense' spot
Report 10 personas

ITC Mangaldeep 'Sixth Sense' — Full Creative-Testing Dashboard

Apr 29, 2026

Chorus's 10-persona creative-testing dashboard for ITC Mangaldeep's April 2026 'Sixth Sense' ad — emotion arc, per-persona signals, scene heatmap, and timestamped edit suggestions.

  • The 0:54 smell-reveal moment is the single highest-agreement beat across all 10 personas (0.98) — universally read as the strongest emotional payoff.
  • Four cross-persona convergence beats: relatable opening lie, smell reveal, dignified CSR cut, brand close — agreement scores 0.76 to 1.00.
Read
ITC Mangaldeep 'Sixth Sense' 90-second ad evaluated by 10 Indian personas across rural and urban demographics
Report 10 personas

ITC Mangaldeep 'Sixth Sense' Ad: 79.6/100 Across 10 Indian Personas

Apr 29, 2026

10 Indian personas spanning rural UP, Bihar, Rajasthan and metro India rate Mangaldeep's 90-second CSR ad at 79.6/100 — cultural fit strong, brand recall weak.

  • Cultural appropriateness scored highest (consensus across all 10 personas) — temple setting, Hindi banter, samosa-and-cricket scene read as authentic across rural and urban viewers
  • Brand recall is the soft spot — Mangaldeep logo only appears at 1:16 of a 1:30 ad, creating drop-off risk for digital-first viewers
Read
Full creative-testing dashboard cover — grid of charts showing per-persona signals, scene heatmap, and timeline overlay for the Burger King 'There's A New King' spot
Report 12 personas

Burger King 'There's A New King' — Full Creative-Testing Dashboard

Apr 20, 2026

Chorus's 12-persona creative-testing dashboard for Burger King's 2026 'There's A New King' — emotion arc, per-persona signals, scene heatmap, and timestamped edit suggestions.

  • The 0:32 'we fell off' admission is the single highest-agreement moment across all 12 personas (0.98) — widely read as bold, credible, trust-building.
  • Five cross-persona convergence beats spanning the full arc: transparency pivot, customer-complaint board, mascot firing, fresh-prep montage, closing turnaround plan — agreement scores 0.72 to 0.98.
Read
Two parallel focus group panels — one Maharashtra/Central India with 9 personas, one Kerala with 7 personas — discussing evolving food choices
Report 16 personas

A Focus-Group Revisit of Our Kumar 2022 Food-Choice Replication: All 10 Phase 2 Sub-Themes Recovered, Plus 4 New Frames From Group Dynamics

Apr 20, 2026

A follow-up to our Kumar et al. (2022) food-choice replication. Two moderated focus groups with the same 16 synthetic personas we used in the interview pass — Maharashtra and Kerala panels. The group format recovered all 10 of Kumar's Phase 2 sub-themes and surfaced 4 additional frames on top.

  • A moderated focus-group format with the same 16 synthetic personas from our Kumar 2022 interview replication recovered all 10 of the paper's Phase 2 sub-themes — including advertising and media, which our interview pass had not surfaced
  • Using the same 16 personas across both formats isolates method from panel. Any thematic difference between the focus-group pass and the interview pass is attributable to research method alone, not to who participated
Read
Two parallel focus group panels — one Maharashtra/Central India with 9 personas, one Kerala with 7 personas — discussing processed foods
Report 16 personas

Replicating a Peer-Reviewed Food Study — Phase 1 (Processed Foods): Two Synthetic Focus Groups Recovered All 3 Themes and Surfaced 5 More

Apr 20, 2026

A replication of Kumar et al. (2022) Phase 1 — two focus groups on urban Indian middle-class perceptions of processed foods. 16 synthetic personas matched to Kumar's criteria (age 40-65, college-educated, white-collar, no medical/nutritional background). Recovered all 3 Phase 1 themes and surfaced 5 additional frames on top.

  • Two moderated focus groups with 16 synthetic personas recovered all 3 of Kumar et al.'s Phase 1 themes — conceptualization of processed foods, types of processed foods, and factors associated with their use
  • The focus-group format surfaced 5 additional frames on top of Kumar's 3 themes — the 'helps cooking vs replaces cooking' distinction, a gray-zone middle category with bread as its boundary object, health-halo skepticism, the grandmother-recognition test, and backup-to-routine normalization
Read
Validation study cover — side-by-side visualisation of an emotional arc trace next to a persona-panel score grid, illustrating the convergence between Chorus's creative evaluation and System1's 3.8★ read on the Burger King 'There's A New King' spot
Report 12 personas

Validating Our Creative Read Against System1: Same Dip-Then-Rise Arc, Panel Converges at the 0:32 Self-Critical Pivot, Independently Measured

Apr 18, 2026

Chorus validation study: on Burger King's 2026 'There's A New King', our 12-persona panel reached the same broad positive direction and dip-then-rise mechanism as System1's 3.8★ review. Independently, the panel's strongest consensus (0.98) landed on the 0:32 self-critical admission. The two scales are different instruments and are not directly comparable.

  • System1 rated the spot 3.8★ with Exceptional Spike and Fluency. Our 12-persona panel returned a 0.80 composite (pass). Both instruments read the ad as working, in the same direction — but the two scales measure different things and are not directly comparable.
  • The moment-by-moment trace reproduced System1's described mechanism: sadness at 0s → nostalgic joy → disgust/anger/fear through the accountability beat → intense joy at the rebirth.
Read
Side-by-side comparison of the original Kumar 2022 food study and our synthetic persona replication, with the replication shown as a larger circle containing 8 persona avatars and richer thematic coverage
Report 22 personas

Replicating a Peer-Reviewed Food Study — Phase 2: 22 Synthetic Personas Matched 9 of 10 Sub-Themes, and Surfaced 6 Frames the Paper Didn't Document

Apr 9, 2026

We replicated the Phase 2 interview protocol of Kumar, Kulkarni & Rathi (2022) with 22 synthetic personas. Matched 9 of the paper's 10 Phase 2 sub-themes and surfaced 6 additional frames the paper's analysis didn't cover.

  • The deep analytical pass covered 9 of Kumar's 10 Phase 2 sub-themes — 8 fully matched, 1 in adjacent form (weighted: 8.5 / 10 = 85%)
  • On top of that, 6 additional frames surfaced that were not documented in the paper's analysis — including Gulf food culture, medical-KPI diet governance, and 'pure veg' marketing as caste exclusion
Read
Gillette We Believe The Best Men Can Be advertisement screenshot
Report 9 personas

Gillette 'We Believe' Advertisement - Focus Group Research

Mar 11, 2026

Audience panel on Gillette's 'We Believe' toxic masculinity ad. 9 perspectives, 35 questions, 6.4/10 overall. Strong message clarity, weak conversion pathway.

  • Overall score 6.4/10 with deeply polarized sentiment — 44% negative, 22% very positive
  • Brand recall (9.5/10) and message clarity (9.0/10) scored highest — everyone remembers it, everyone understands it
Read
SVEDKA 'Shake Your Bots Off' Super Bowl 2026 AI-generated robot advertisement screenshot
Report 8 personas

SVEDKA 'Shake Your Bots Off' Super Bowl 2026 - Focus Group Research

Feb 25, 2026

Audience panel on SVEDKA's Super Bowl AI robot ad. 8 perspectives, 27 questions, 5.7/10 overall. Uncanny valley undermines trust despite near-perfect brand recall.

  • Overall score 5.7/10 — near-perfect brand recall (9.3) but critically low emotional resonance (3.7)
  • Uncanny valley effect universal — every persona experienced discomfort at robot faces, drinking sequence, and sparking ending
Read
Hims & Hers Super Bowl commercial 'Sick of the System' screenshot
Report 12 personas

Hims & Hers Big Game Commercial - Focus Group Research

Jan 15, 2026

Audience panel on Hims & Hers' 2025 Super Bowl ad 'Sick of the System.' 12 perspectives, 29 questions, 6.7/10 overall. Strong emotional impact but trust concerns.

  • Overall score 6.7/10 with 50% positive, 17% neutral, 33% negative sentiment
  • CTA visibility near-perfect (9.5/10) - brand impossible to miss
Read
Coinbase musical theater video advertisement screenshot
Report 7 personas

Coinbase Video Advertisement - Focus Group Research

Jan 9, 2026

Audience panel research on Coinbase's musical theater crypto ad. 7 perspectives, 32 questions, 7.1/10 overall score. See what resonated and what fell flat.

  • Overall score 7.1/10 with 86% positive/very positive sentiment
  • Brand differentiation and memorability scored highest (8.4-9.0/10)
Read