gpt-image
Generate or edit images with GPT Image 2 or 2.5 through the packaged CLI and Reference Gallery. Use for image requests including imprecise 'GPT 2.5' model names, posters, typography, reference edits, and inpainting; resolve the model choice before generation.
By wuyoscar · 456 installs
npx skills add wuyoscar/gpt-image2-skill --skill gpt-image
Source repository · Upstream listing
gpt image
Agent runbook for GPT Image 2 / 2.5 generation/editing. Use the prompt library + packaged CLI. Do not reimplement image API code.
Operating loop
1. Classify request and resolve model : generate , edit , inpaint , or multi reference ; identify asset type, exact text, aspect ratio, references, safety constraints, and budget/quality. Apply the model choice rules below before any API call.
2. Choose the reference path : Image 2 keeps the gallery first workflow below. For 2.5, a precise brief needs no reference loading; otherwise choose one short task slice.
3. Refine only as needed : preserve the brief. Add a specific gallery case, craft section or template only to fill a concrete gap; do not load them as a bundle for 2.5.
4. Confer when useful : before costly/ambiguous/high polish calls, present 1–3 matched directions plus planned size/quality; ask at most one concise question at a time. Skip long discussion for precise “generate now” requests with a resolved model.
5. Preflight, no side effects : use existing CLI/skill if present. Check command availability ( command v gpt image ), installed tool lists when the tool manager exists, or the runtime’s own skill registry when available. Do not assume a local home path in cloud/hosted runtimes.
6. No blind setup : do not reinstall, overwrite skill folders, create/modify .env , or write API keys unless the user explicitly requested setup. Global/shared installs are opt in only.
7. Execute via CLI only : call gpt image or scripts/generate.py with an explicit model . Do not create a new generate.py , SDK wrapper, or ad hoc script for normal image requests.
8. Report : output file path(s), key flags, and one concise refinement suggestion if useful.
Fast path: confirmed 2.5 model + precise prompt + “generate now” → preflight and CLI, without a mandatory reference/craft pass. Do not reconfirm an exact valid model.
Model choice and prompt adaptation
Choice API model ID Suggested use
Flare gpt image 2.5 flare Fast general generation and drafts
Sunburst gpt image 2.5 sunburst Precise reference edits and detailed control
Image 2 gpt image 2 Existing Image 2 workflows and compatibility
If the model is absent, ambiguous (such as “GPT 2.5”), or misspelled, ask one clear question offering Flare, Sunburst, and Image 2 with these trade offs, then wait. For a typo, suggest the likely intended choice without silently correcting it. Do not treat gpt image 2.5 as an API model ID.
Use an exact supported model ID, an unambiguous choice from this menu, or the user's already confirmed choice for the current task without asking again. If the user explicitly says “you choose,” explain the pick briefly and proceed; consider their task and budget rather than always selecting the most expensive settings.
Always pass the chosen ID through model . The CLI retains gpt image 2 as its backward compatible default, but that default is not a substitute for the agent resolving the user's choice.
Keep model confirmation, cost discussion, and API flags separate from the final image prompt. Use the model specific reference path below only when it helps the task. Preserve the user's exact text, intended content, reference identity, and edit invariants; obtain confirmation before material prompt changes.
Generate one image unless the user requested more. Do not silently switch models, change material prompt content, or run multiple model/prompt variants or comparisons. Ask before additional paid variants. For an authorized same prompt comparison, keep the prompt, size, and quality identical unless the user asks to vary them.
Consult references/models.md when parameter support or validation status needs checking. On an invalid model, access/403, quota, or policy failure, report the failure and stop; do not switch models or rewrite the prompt to retry automatically.
CLI resolution
Preferred call order:
scripts/generate.py is a launcher: repo local src/gpt image cli → installed gpt image → PATH gpt image → transient uvx / uv fallback.
Key and cost rules
CLI reads OPENAI API KEY from process env, then .env , then ~/.env without overriding existing env; successful API calls may bill the user’s OpenAI account.
If host/runtime has native platform managed image generation and the user wants that path, use the host tool instead of this CLI.
If OPENAI API KEY is unset, report missing key or use host native generation when requested; do not write secrets.
If user wants to avoid local key use, respect unset OPENAI API KEY ; if a key exists in .env / ~/.env , tell them to remove/rename it for the session rather than working around it.
Never print secret values.
Flags
Flag Values Use
p, prompt string Required prompt/edit instruction
f, file path Output path; auto named if omitted
i, image repeatable path Use edits endpoint; supports multiple references
m, mask PNG path Inpaint with alpha mask; requires i
model gpt image 2 , gpt image 2.5 flare , gpt image 2.5 sunburst Agent must pass the resolved choice explicitly
size 1k , 2k , 4k , portrait , landscape , square , wide , tall , or literal Canvas size
quality low , medium , high , auto ; 2.5 also xhigh , max Cost/quality dial; check model specific limits
n, n integer Number of images
background auto , opaque ; 2.5 also transparent Transparency requires PNG or WebP, not JPEG
input fidelity low , high ; omitted by default Edit only; explicit 2.5 values are forwarded to the API, not assumed supported
moderation auto , low Generation moderation setting
format png , jpeg , webp Output encoding
compression 0 100 JPEG/WebP compression
user string Optional end user identifier
Quality starting points (not guarantees; keep the user's agreed setting). For 2.5, these take precedence over fixed quality advice in older craft references:
low : cheap drafts and broad exploration; multiple variants require user authorization.
medium : normal exploration, style probing, balanced cost.
high : CLI default and a candidate for final assets, dense text, diagrams and UI. On 2.5, evaluate against the task requirements; do not assume medium fails or a higher setting always wins.
xhigh / max : 2.5 only options for higher quality work; discuss the cost trade off before increasing an already agreed quality. Do not use them automatically for budget conscious requests.
Size policy:
default/social square: 1k / 1024x1024
poster/mobile/beauty: portrait
landscape/gameplay/photo: landscape
print/paper figure: 2k
widescreen hero: 4k
vertical story/banner: tall
Endpoint routing
Mode Trigger Endpoint
Text to image no i /v1/images/generations
Reference edit one or more i /v1/images/edits
Inpaint i + m /v1/images/edits with mask
Surface API errors verbatim enough for debugging; exit codes: 0 success, 1 API/refusal, 2 bad args/missing key.
Reference loading
Image 2 : open references/gallery.md , then one matching references/gallery .md category and its actual prompt text. Read only relevant sections of references/craft.md or the historical references/openai cookbook.md when needed.
Image 2.5 : no mandatory references for a precise brief. If guidance is needed, choose one directly: references/openai image 2.5 generation.md (photo/product/illustration), references/openai image 2.5 layout and text.md (text/UI/diagrams/panels), or references/openai image 2.5 editing.md (references/masks/translation).
Other questions : references/openai image 2.5.md is an optional index; references/openai image 2.5 migration.md covers migration/comparison; references/models.md owns current API parameters and validation status.
Extra inspiration only : gallery cases, a targeted craft section, or references/templates gpt image 2.5.md (community adaptations, not verified outputs). Do not preload them or the old Cookbook for 2.5.
Load the smallest useful slice, not both model routes. Add a second task slice only for a genuine hybrid. Historical examples do not override current API notes or the user's model/settings.
Verification
Before API call: check the resolved model and explicit model , endpoint mode, size, quality, output path, and required reference/mask files. Omit input fidelity unless explicitly needed; do not assume 2.5 always uses or accepts high .
After CLI call: report path(s) printed by the CLI and surface stderr on failure.
For edits/inpaints: verify i paths exist; verify m exists when used.
Preserve Curated vs Author + Source metadata when adapting examples. Add new collected prompts to the Reference Gallery before README promotion.