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Experiment · active

R4S single-practical low-light key

Can the checkpoint hold a single warm practical light with a partially lit subject and crushed blacks elsewhere, without adding extra light sources?

Runs
111
Variable
generation checkpoint
Prompt
r4s-lolit-001-prompt v1.0

Protocol

Round 4S SwarmUI throughput cell: this frozen prompt is planned across five shared open-weight checkpoints at 1024x1024 with three unseeded repetitions each. One hosted MiniMax calibration arm has run; the five-checkpoint SwarmUI matrix remains blocked and unexecuted.

Frozen prompt template

CONTROL PROMPT R4S-LOLIT-001. A wide 16:9 cinematic still. A dark workshop interior at night, almost black walls. Exactly one warm tungsten practical desk lamp on a wooden workbench at RIGHT of frame is the only light source, casting a tight warm key light and long soft falloff. In the lit pool on the LEFT side of the bench sits a single midnight-navy enamel clockwork owl figurine with small brass gears, partially lit, half in shadow. Deep crushed blacks outside the lamp pool, subtle volumetric dust in the beam, photoreal film still, shallow depth of field. No screens, no windows, no second lamp, no daylight, no neon, no text, no watermark, no human figures.

Review rubric

  • Prompt Adherence
  • Low Key Lighting
  • Material Realism
  • Single Light Source

Notes

Frozen prompt sha256 94f1d1c7402e875fc583cddec3955bab08caa133129016d652b8e7473f99dffe (666 bytes); positive text is byte-identical across all checkpoint arms. Deterministic Pillow signals (Rec.709 luminance): mean-luminance pass 12-95; dark-pixel-fraction (L<40) pass>=0.40; highlight-pixel-fraction (L>200) pass 0.002-0.15; warm-highlight-bias (L>160: mean(R-B)) pass>=5. If no L>160 pixels exist, warm-highlight-bias is null and fails closed rather than becoming zero. Non-claims: N=3 unseeded reps per cell are a launch/screening signal, not a leaderboard; deterministic pixel metrics are objective facts, not quality judgements; rubric-* items require a separate vision review; no OCR or topology facts are produced this round. Failed, moderated, and discarded runs remain in the public data when legally releasable.

Evidence

Recorded runs

errorImage-01

Cloud Wave 20260802 Minimax Wave4 Active Variance R4s Low Light Key 037

Expanded cloud-wave variance specimen; not independently graded yet.

Size
not returned
Seed
not exposed
Method
official api
View experiment →
Generated specimen r4s-low-light-key-openai-gpt-image-2-medium-01 r4s-low-light-key-openai-gpt-image-2-medium-01
successGPT Image 2 Medium

R4s Low Light Key Openai Gpt Image 2 Medium 01

Screening grade: passed. The wide dark-workshop composition contains one warm desk lamp on the right and one midnight-navy/brass clockwork owl on the left, partially lit against deep blacks. No visible screen, window, second lamp, daylight, neon, text, watermark, or human figure. Subtle dust/falloff and photoreal …

Size
1672×941
Seed
not exposed
Method
official api
View experiment →
Generated specimen r4s-low-light-key-openai-gpt-image-2-medium-02 r4s-low-light-key-openai-gpt-image-2-medium-02
successGPT Image 2 Medium

R4s Low Light Key Openai Gpt Image 2 Medium 02

Screening grade: passed. The wide dark-workshop composition contains one warm desk lamp on the right and one midnight-navy/brass clockwork owl on the left, partially lit against deep blacks. No visible screen, window, second lamp, daylight, neon, text, watermark, or human figure. Subtle dust/falloff and photoreal …

Size
1672×941
Seed
not exposed
Method
official api
View experiment →
Generated specimen r4s-low-light-key-openai-gpt-image-2-medium-03 r4s-low-light-key-openai-gpt-image-2-medium-03
successGPT Image 2 Medium

R4s Low Light Key Openai Gpt Image 2 Medium 03

Screening grade: passed. The wide dark-workshop composition contains one warm desk lamp on the right and one midnight-navy/brass clockwork owl on the left, partially lit against deep blacks. No visible screen, window, second lamp, daylight, neon, text, watermark, or human figure. Subtle dust/falloff and photoreal …

Size
1672×941
Seed
not exposed
Method
official api
View experiment →