| name | glg-image |
| description | 이미지 생성 멀티백엔드. 1차=Gemini Flash Lite 1K(속도), 필요 시 Flash 1K·Grok 구독. Denote 파일명 __brand_<maker>. Autholog 재생성 루프용. '이미지 생성', '그림 뽑아', 'glg-image', '나노바나나', 'flash lite'. |
| compatibility | Node 20+ and GEMINI_API_KEY for gemini lite/flash; grok CLI optional subscription backend |
Image generation — multi-backend (speed first)
Autholog edits often regenerate an image 2–3 times in one sitting. Wall-clock latency matters more than shaving API cents. Default is fast Gemini Lite @ 1K; Grok remains a subscription option; Codex is opt-in only (style mismatch).
Default policy
| Rule | Value |
|---|
| 1st try | Gemini 3.1 Flash Lite Image (gemini-3.1-flash-lite-image) @ 1K |
| Resolution | 1K always unless GLG explicitly asks 2K/4K (Lite cannot do 2K/4K) |
| Escalate | Lite weak on lock → Flash (gemini-3.1-flash-image) still @ 1K |
| Alt | grok Imagine (sub, ~40s, cel-flat) when GLG wants that look or API key missing |
| Avoid default | codex (painterly); Pro Image; auto-2K |
| Filename | ~/screenshot/YYYYMMDDTHHMMSS--<slug>__brand_<maker>.jpg |
Maker tags (__brand_<maker>)
| maker | Backend |
|---|
geminilite | Nano Banana 2 Lite |
geminiflash | Nano Banana 2 (Flash) |
geminipro | Nano Banana Pro (explicit only) |
grok | Grok Imagine |
codex | Codex image_gen (explicit only) |
nanobanana | legacy gemini dumps only |
Model card (product names)
| Product | API id | Role | Size | Notes |
|---|
| Nano Banana 2 Lite | gemini-3.1-flash-lite-image | Default — speed/cost | 1K only | <~2s target; not for heavy multi-ref / long multi-turn edit chains |
| Nano Banana 2 | gemini-3.1-flash-image | Workhorse escalate | 0.5K / 1K / 2K / 4K | Better consistency, text, multi-ref; we still default 1K |
| Nano Banana Pro | gemini-3-pro-image (+ preview ids) | Premium | 1K–4K | Explicit only |
| Grok Imagine | via grok CLI image_gen | Sub alt | ~1280×720 | No Gemini $; slower agent loop than Lite |
Gemini $ (paid tier, image output — scales with size)
Flash Image ($60/1M image tokens): 1K ≈ $0.067, 2K ≈ $0.101, 4K ≈ $0.151, 0.5K ≈ $0.045.
Flash Lite Image ($15–30/1M depending tier): 1K ≈ $0.017–0.034.
2K is not free upgrade — do not auto-2K on autholog retries.
Filename contract
YYYYMMDDTHHMMSS--<slug>__brand_<maker>.<ext>
KST Denote timestamp · short ascii slug · required maker tag.
Never leave maker-less finals. Session caches under ~/.grok/sessions/ or ~/.codex/generated_images/ are intermediate only.
Invoke
A. Gemini Lite / Flash (primary path)
TS=$(TZ='Asia/Seoul' date '+%Y%m%dT%H%M%S')
node {baseDir}/gemini-image-gen.mjs \
--prompt-file PROMPT.txt \
--aspect-ratio 16:9 \
--image-size 1K \
--model lite \
--output ~/screenshot/${TS}--<slug>__brand_geminilite.jpg \
--json
node {baseDir}/gemini-image-gen.mjs \
--prompt-file PROMPT.txt \
--aspect-ratio 16:9 \
--image-size 1K \
--model flash \
--output ~/screenshot/${TS}--<slug>__brand_geminiflash.jpg \
--json
Aliases: lite · flash · pro · full API ids.
CLI default model = lite, default size = 1K. Lite + --image-size 2K is rejected.
Exact-prompt mode: pass autholog :PROMPT: body verbatim (no rewrite).
B. Grok (subscription alt)
grok --prompt-file AGENT_WRAPPER.txt \
--always-approve --max-turns 8 \
--output-format plain --cwd /tmp
Wrapper forces exact prompt + final path ending in __brand_grok.jpg.
C. Codex — only if GLG asks
codex exec --skip-git-repo-check --dangerously-bypass-approvals-and-sandbox ... → __brand_codex.jpg.
Autholog loop (2–3 retries)
- Extract exact
:PROMPT:.
- Generate lite @ 1K → open pixels → check locks (body, no extra cast, no text, meaning).
- If fail: same prompt again lite, or escalate flash @ 1K (not 2K).
- Optional third: grok if Lite/Flash miss the cel mood GLG wants.
- Record path + maker + model in note; keep
:PROMPT: unchanged.
Do not burn retries on Pro or 2K unless GLG says so.
GLGMAN mode
Canonical command note: ~/repos/gh/agent-config/commands/glg-image.md
World SSOT botlog: 20260327T100239 — offset-read common block only when composing a new scene. Existing autholog :PROMPT: already embeds world lock → use as-is.
Quality gate
- Claimed path must exist.
- Subject integrity + forbidden-object/text locks.
- Name pose/object drift honestly.
- Never print API keys.
- Never silent Pro / 2K escalate after one weak Lite frame.
Reference batch (2026-08-02 tears, same prompt)
| brand | backend | px | ~latency |
|---|
| grok | Imagine | 1280×720 | ~40s |
| geminiflash | flash 1K | 1376×768 | ~10s |
| codex | (opt-in) | 1672×941 | ~90s |
Lite not in that batch; product target <2s + lowest $ — use as autholog first shot going forward.
