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ChatImg

ChatImg 是 ChatArch 的图片生成包,承接原 chattool image 中已经解耦的 provider 实现。

当前支持:

  • openai / crs:OpenAI-compatible API-key 生图,兼容默认 Images,并支持显式 Responses 模式。
  • codex / openai-codex:ChatGPT/Codex OAuth image bridge,复用 ChatEnv OpenAI profile + runtime token-store,支持 gpt-image-2-* preset。
  • pollinations:Pollinations.ai image URL generation and model listing。
  • siliconflow:SiliconFlow OpenAI-compatible image generation。
  • huggingface:Hugging Face Inference image generation。
  • liblib:LiblibAI signed API generation。
  • tongyi:通义万相 / DashScope image generation。

安装

开发安装:

pip install -e ".[dev]"

通义万相 SDK 可选依赖:

pip install -e ".[images]"

CLI

chatimg --help
chatimg --version
chatimg --tree
chatimg --tree-brief
chatimg openai generate "a small red apple icon" -o apple.png
chatimg codex auth-status --profile work
chatimg codex auth-refresh --profile work
chatimg codex list-models
chatimg pollinations list-models

chatimg --tree 默认显示参数签名;chatimg --tree-brief 保留命令节点和描述,但省略参数签名。两种输出都由 ChatStyle 的共享 Click tree runtime 生成,并以公开 CLI 名 chatimg 作为根节点。

生成示例:

chatimg openai generate "a watercolor fox in the snow" --model gpt-image-2-medium --size 1024x1024 -o fox.png
chatimg codex generate "a watercolor fox in the snow" --profile work --aspect-ratio square -o fox-codex.png
chatimg pollinations generate "a cyberpunk cat" --model flux --width 512 --height 512 -o cat.png
chatimg siliconflow generate "a cute dog" --size 1024x1024 -o dog.png
chatimg huggingface generate "A futuristic city at night" -o city.png
chatimg liblib generate "A cute dog" --model-id liblib-sdxl-model -o dog.png
chatimg tongyi generate "一只赛博朋克猫" --size "1024*1024" -o cat.png

OpenAI-compatible / CRS API-key 生图

openai provider 对齐 OpenAI 官方 Images API:POST {OPENAI_API_BASE}/images/generations。官方 base 是 https://api.openai.com/v1,因此完整官方接口是 https://api.openai.com/v1/images/generations。CRS 兼容服务可用自己的带 /v1 base,例如 https://crs.example/openai/v1。

Images 保持兼容默认。若 CRS bridge 通过 /responses 返回最终图片,请显式使用 --api-mode responses。carrier --host-model(默认 gpt-5.5,也可来自 OPENAI_API_MODEL)与 image --model 独立。未指定 --profile 时,优先级为显式参数、进程环境、active ChatEnv profile、默认值;指定后只加载该 OpenAI profile,不激活,也不跨账号 fallback,显式参数仍优先。API mode 的顺序为显式参数、进程环境、active ChatImg profile、images。此 API-key 路径不读取 OAuth token 文件,也不会自动重试。Responses 会转发 background,未知 Python 扩展参数会在 HTTP 前被拒绝。

常用配置字段:

  • OPENAI_API_BASE:OpenAI-compatible API base,必须包含 /v1。
  • OPENAI_API_KEY:API key;不会 fallback 到 access token。
  • OPENAI_IMAGE_MODEL:默认 image preset,例如 gpt-image-2-medium,会拆成 model=gpt-image-2 与 quality=medium。
chatenv use -t oai apple
chatimg openai generate "a small red apple icon" -o apple.png

CRS 验收建议分两步:先用同一个 API key 调普通 /responses 模型确认 key、账号绑定和模型路由,再调用 Images API。客户端始终只持有 OPENAI_API_KEY,不会读取或 fallback 到 OAuth access token。

chatimg openai generate \
  "A simple orange paper airplane over a pale blue grid, no text" \
  --api-mode responses \
  --profile work \
  --host-model gpt-5.5 \
  --model gpt-image-2-low \
  --quality low \
  --size 1024x1024 \
  -o generated/crs-api-key-image.png

Codex / GPT Image2 实测示例

codex provider 走 ChatGPT/Codex OAuth-backed Responses API,请求里的 image tool model 是 gpt-image-2。它不是外部 Codex CLI。

chatimg codex 现在复用 ChatEnv 的 OpenAI profile 和 runtime token-store,不再需要维护单独的 Codex env 文件:

  • runtime token-store:~/.chatarch/tokens/OpenAI/<profile>.json,包含 access/refresh token 等动态状态,并且优先级最高。
  • stable seed:~/.chatarch/envs/OpenAI/<profile>.env(default profile 使用 active OpenAI/.env),只放 OAuth/backend/model seed 或 fallback。
  • 常用 seed 字段:OPENAI_OAUTH_BASE_URL、CHATGPT_BACKEND_BASE_URL、OPENAI_API_MODEL、OPENAI_IMAGE_MODEL。
  • 请求地址默认由 CHATGPT_BACKEND_BASE_URL 组合为 ${CHATGPT_BACKEND_BASE_URL}/codex/responses。
  • openai/crs API-key provider 仍只读取 OPENAI_API_KEY,不会 fallback 到 OAuth token。

可以显式指定 OpenAI profile:

chatimg codex auth-status --profile work
chatimg codex auth-refresh --profile work
chatimg codex generate "a small orange paper airplane" \
  --profile work \
  --host-model gpt-5.5 \
  --image-model gpt-image-2-low \
  -o generated/codex-image.png

基础验收图:

chatimg codex generate \
  "A clean minimal ChatImg acceptance test illustration: a friendly robot holding a small picture frame, modern flat design, white background, no text" \
  --image-model gpt-image-2-low \
  --aspect-ratio square \
  -o generated/chatimg-gpt-image2-basic.png \
  --timeout 300

快速排序流程图:

chatimg codex generate \
  "Create a clean landscape technical design flowchart explaining quicksort. Use this exact example array: [6, 3, 8, 5, 1, 10, 2]. Pick pivot = 5. Partition correctly: left part [3, 1, 2] labeled < pivot, right part [6, 8, 10] labeled > pivot. Include steps: START, base case length <= 1?, pick pivot, partition array, recursively sort left part, recursively sort right part, concatenate sorted-left + pivot + sorted-right, END. Modern vector style, white background, blue/orange accents, arrows, decision diamond, readable simple English labels. Avoid mathematical mistakes." \
  --image-model gpt-image-2-medium \
  --aspect-ratio landscape \
  -o generated/chatimg-gpt-image2-quicksort-flowchart.png \
  --timeout 300

Python API

from chatimg.image import create_generator

generator = create_generator("codex", profile="work")
result = generator.generate("A cute cat astronaut")

配置

ChatImg 注册了 chatenv.configs entry point:

chatimg = "chatimg.config"

支持的主要环境变量:

  • OPENAI_API_BASE, OPENAI_API_KEY, OPENAI_IMAGE_MODEL
  • OPENAI_OAUTH_BASE_URL, CHATGPT_BACKEND_BASE_URL, OPENAI_API_MODEL, OPENAI_IMAGE_MODEL 作为 OpenAI profile seed;runtime OAuth tokens 由 tokens/OpenAI/<profile>.json 管理
  • POLLINATIONS_API_KEY, POLLINATIONS_MODEL_ID
  • SILICONFLOW_API_KEY, SILICONFLOW_MODEL_ID
  • HUGGINGFACE_HUB_TOKEN
  • LIBLIB_ACCESS_KEY, LIBLIB_SECRET_KEY, LIBLIB_MODEL_ID
  • DASHSCOPE_API_KEY

开发验证

PYTHONPATH=src python -m pytest -q
PYTHONPATH=src python -m chatimg.image.cli --help
PYTHONPATH=src python -m chatimg.image.cli --tree
PYTHONPATH=src python -m chatimg.image.cli --tree-brief
PYTHONPATH=src python -m chatimg.image.cli codex list-models
python -m build
python -m twine check dist/*

发布状态

PyPI ChatImg 从 0.1.x 开始发布功能版本;0.1.6 将顶层 CLI tree 迁移到 ChatStyle 共享 runtime,默认树保留参数签名,并新增 --tree-brief。

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