Files
ComfyUI/comfy_api_nodes/nodes_openrouter.py
T
Alexander Piskun a8686f2b33 [Partner Nodes] feat(client): send Idempotency-Key on partner-proxy calls and collect replays (#16220)
* [Partner Nodes] feat(client): send Idempotency-Key on partner-proxy calls and collect replays

Signed-off-by: Alexander Piskun <bigcat88@icloud.com>

* [Partner Nodes] feat(client): opt partner nodes into Comfy-hosted asset URLs in place of inline media

Signed-off-by: Alexander Piskun <bigcat88@icloud.com>

---------

Signed-off-by: Alexander Piskun <bigcat88@icloud.com>
2026-09-18 10:56:18 +04:00

645 lines
26 KiB
Python

"""API Nodes for OpenRouter chat completions: LLM text generation and image generation."""
import base64
from dataclasses import dataclass
from io import BytesIO
from typing import Literal
import torch
from typing_extensions import override
from comfy_api.latest import IO, ComfyExtension, Input
from comfy_api_nodes.apis.openrouter import (
OpenRouterChatRequest,
OpenRouterChatResponse,
OpenRouterContentBlock,
OpenRouterError,
OpenRouterImageContent,
OpenRouterImageData,
OpenRouterImageRequest,
OpenRouterImageResponse,
OpenRouterImageUrl,
OpenRouterMessage,
OpenRouterReasoningConfig,
OpenRouterTextContent,
OpenRouterVideoContent,
OpenRouterVideoUrl,
OpenRouterWebSearchOptions,
)
from comfy_api_nodes.util import (
ApiEndpoint,
bytesio_to_image_tensor,
download_url_to_image_tensor,
get_number_of_images,
pad_images_to_common_channels,
sync_op,
upload_images_to_comfyapi,
upload_video_to_comfyapi,
validate_string,
)
OPENROUTER_CHAT_ENDPOINT = "/proxy/openrouter/api/v1/chat/completions"
OPENROUTER_IMAGES_ENDPOINT = "/proxy/openrouter/api/v1/images"
Profile = Literal["standard", "reasoning", "frontier_reasoning", "perplexity", "perplexity_reasoning"]
@dataclass(frozen=True)
class _ModelSpec:
slug: str # exact OpenRouter model id
profile: Profile
price_in: float # USD per token (prompt)
price_out: float # USD per token (completion)
max_images: int = 0 # 0 = no image input; otherwise max URL-passed images supported
max_videos: int = 0 # 0 = no video input; otherwise max URL-passed videos supported
MODELS: list[_ModelSpec] = [
_ModelSpec("anthropic/claude-opus-5", "frontier_reasoning", 0.00000715, 0.00003575, max_images=20),
_ModelSpec("anthropic/claude-opus-4.8", "frontier_reasoning", 0.00000715, 0.00003575, max_images=20),
_ModelSpec("anthropic/claude-opus-4.7", "frontier_reasoning", 0.00000715, 0.00003575, max_images=20),
_ModelSpec("anthropic/claude-fable-5", "frontier_reasoning", 0.0000143, 0.0000715, max_images=20),
_ModelSpec("anthropic/claude-sonnet-5", "frontier_reasoning", 0.00000286, 0.0000143, max_images=20),
_ModelSpec("anthropic/claude-haiku-4.5", "frontier_reasoning", 0.00000143, 0.00000715, max_images=20),
_ModelSpec("openai/gpt-5.6-sol-pro", "frontier_reasoning", 0.00000715, 0.0000429, max_images=20),
_ModelSpec("openai/gpt-5.6-sol", "frontier_reasoning", 0.00000715, 0.0000429, max_images=20),
_ModelSpec("openai/gpt-5.6-terra-pro", "frontier_reasoning", 0.000003575, 0.00002145, max_images=20),
_ModelSpec("openai/gpt-5.6-terra", "frontier_reasoning", 0.000003575, 0.00002145, max_images=20),
_ModelSpec("openai/gpt-5.6-luna-pro", "frontier_reasoning", 0.00000143, 0.00000858, max_images=20),
_ModelSpec("openai/gpt-5.6-luna", "frontier_reasoning", 0.00000143, 0.00000858, max_images=20),
_ModelSpec("openai/gpt-5.5-pro", "frontier_reasoning", 0.0000429, 0.0002574, max_images=20),
_ModelSpec("openai/gpt-5.5", "frontier_reasoning", 0.00000715, 0.0000429, max_images=20),
_ModelSpec("google/gemini-3.5-flash", "reasoning", 0.000002145, 0.00001287, max_images=20, max_videos=4),
_ModelSpec("x-ai/grok-4.5", "reasoning", 0.00000286, 0.00000858, max_images=20),
_ModelSpec("x-ai/grok-4.20", "reasoning", 0.0000017875, 0.000003575, max_images=20),
_ModelSpec("x-ai/grok-4.3", "reasoning", 0.0000017875, 0.000003575, max_images=20),
_ModelSpec("deepseek/deepseek-v4-pro", "reasoning", 0.00000062205, 0.0000012441),
_ModelSpec("deepseek/deepseek-v4-flash", "reasoning", 0.00000016016, 0.00000032032),
_ModelSpec("deepseek/deepseek-v3.2", "reasoning", 0.00000036036, 0.00000054054),
_ModelSpec("qwen/qwen3.6-max-preview", "reasoning", 0.0000014872, 0.0000089232),
_ModelSpec("qwen/qwen3.6-plus", "reasoning", 0.00000046475, 0.0000027885, max_images=10, max_videos=4),
_ModelSpec("qwen/qwen3.6-flash", "reasoning", 0.000000268125, 0.00000160875, max_images=10, max_videos=4),
_ModelSpec("mistralai/mistral-large-2512", "standard", 0.000000715, 0.000002145, max_images=8),
_ModelSpec("mistralai/mistral-medium-3-5", "reasoning", 0.000002145, 0.000010725, max_images=8),
_ModelSpec("z-ai/glm-4.6", "reasoning", 0.0000006149, 0.0000024882),
_ModelSpec("z-ai/glm-5", "reasoning", 0.000000858, 0.0000027456),
_ModelSpec("moonshotai/kimi-k3", "reasoning", 0.00000429, 0.00002145, max_images=10),
_ModelSpec("moonshotai/kimi-k2.6", "reasoning", 0.0000010439, 0.0000049907, max_images=10),
_ModelSpec("moonshotai/kimi-k2-thinking", "reasoning", 0.000000858, 0.000003575),
_ModelSpec("perplexity/sonar-pro", "perplexity", 0.00000429, 0.00002145),
_ModelSpec("perplexity/sonar-reasoning-pro", "perplexity_reasoning", 0.00000286, 0.00001144),
_ModelSpec("perplexity/sonar-deep-research", "perplexity_reasoning", 0.00000286, 0.00001144),
]
_MODELS_BY_SLUG: dict[str, _ModelSpec] = {m.slug: m for m in MODELS}
_REASONING_EFFORTS = ["off", "low", "medium", "high"]
_SEARCH_CONTEXT_SIZES = ["low", "medium", "high"]
def _reasoning_extra_inputs() -> list:
return [
IO.Combo.Input(
"reasoning_effort",
options=_REASONING_EFFORTS,
default="off",
tooltip="Reasoning effort. 'off' disables reasoning entirely.",
advanced=True,
),
]
def _perplexity_extra_inputs() -> list:
return [
IO.Combo.Input(
"search_context_size",
options=_SEARCH_CONTEXT_SIZES,
default="medium",
tooltip="How much web search context to retrieve. Larger = more grounded but slower/pricier.",
advanced=True,
),
]
def _profile_inputs(profile: Profile) -> list:
if profile == "standard":
return []
if profile in ("reasoning", "frontier_reasoning"):
return _reasoning_extra_inputs()
if profile == "perplexity":
return _perplexity_extra_inputs()
if profile == "perplexity_reasoning":
return _perplexity_extra_inputs() + _reasoning_extra_inputs()
raise ValueError(f"Unknown profile: {profile}")
def _media_inputs(spec: _ModelSpec) -> list:
extras: list = []
if spec.max_images > 0:
extras.append(
IO.Autogrow.Input(
"images",
template=IO.Autogrow.TemplateNames(
IO.Image.Input("image"),
names=[f"image_{i}" for i in range(1, spec.max_images + 1)],
min=0,
),
tooltip=f"Optional reference image(s) — up to {spec.max_images}. Sent as URLs.",
)
)
if spec.max_videos > 0:
extras.append(
IO.Autogrow.Input(
"videos",
template=IO.Autogrow.TemplateNames(
IO.Video.Input("video"),
names=[f"video_{i}" for i in range(1, spec.max_videos + 1)],
min=0,
),
tooltip=f"Optional reference video(s) — up to {spec.max_videos}. Sent as URLs.",
)
)
return extras
def _inputs_for_model(spec: _ModelSpec) -> list:
return _profile_inputs(spec.profile) + _media_inputs(spec)
def _build_model_options() -> list[IO.DynamicCombo.Option]:
return [IO.DynamicCombo.Option(spec.slug, _inputs_for_model(spec)) for spec in MODELS]
def _price_badge_jsonata() -> str:
rates_pairs = []
for spec in MODELS:
prompt_per_1k = spec.price_in * 1000
completion_per_1k = spec.price_out * 1000
rates_pairs.append(f' "{spec.slug}": [{prompt_per_1k:.8g}, {completion_per_1k:.8g}]')
rates_block = ",\n".join(rates_pairs)
return (
"(\n"
" $rates := {\n"
f"{rates_block}\n"
" };\n"
" $r := $lookup($rates, widgets.model);\n"
" $r ? {\n"
' "type": "list_usd",\n'
' "usd": $r,\n'
' "format": { "approximate": true, "separator": "-", "suffix": " per 1K tokens" }\n'
' } : {"type": "text", "text": "Token-based"}\n'
")"
)
async def _build_image_blocks(
cls: type[IO.ComfyNode], spec: _ModelSpec, images: list[Input.Image]
) -> list[OpenRouterImageContent]:
urls = await upload_images_to_comfyapi(
cls,
images,
max_images=spec.max_images,
total_pixels=2048 * 2048,
mime_type="image/png",
wait_label="Uploading reference images",
)
return [OpenRouterImageContent(image_url=OpenRouterImageUrl(url=url)) for url in urls]
async def _build_video_blocks(cls: type[IO.ComfyNode], videos: list[Input.Video]) -> list[OpenRouterVideoContent]:
blocks: list[OpenRouterVideoContent] = []
total = len(videos)
for idx, video in enumerate(videos):
label = "Uploading reference video"
if total > 1:
label = f"{label} ({idx + 1}/{total})"
url = await upload_video_to_comfyapi(cls, video, wait_label=label)
blocks.append(OpenRouterVideoContent(video_url=OpenRouterVideoUrl(url=url)))
return blocks
def _user_message(prompt: str, media_blocks: list[OpenRouterContentBlock]) -> OpenRouterMessage:
if not media_blocks:
return OpenRouterMessage(role="user", content=prompt)
blocks: list[OpenRouterContentBlock] = list(media_blocks)
blocks.append(OpenRouterTextContent(text=prompt))
return OpenRouterMessage(role="user", content=blocks)
def _build_messages(
system_prompt: str, prompt: str, media_blocks: list[OpenRouterContentBlock]
) -> list[OpenRouterMessage]:
messages: list[OpenRouterMessage] = []
if system_prompt:
messages.append(OpenRouterMessage(role="system", content=system_prompt))
messages.append(_user_message(prompt, media_blocks))
return messages
def _build_request(
slug: str,
system_prompt: str,
prompt: str,
media_blocks: list[OpenRouterContentBlock],
*,
seed: int,
reasoning_effort: str | None,
search_context_size: str | None,
) -> OpenRouterChatRequest:
reasoning_cfg: OpenRouterReasoningConfig | None = None
if reasoning_effort and reasoning_effort != "off":
# exclude=True asks providers to reason internally but not return the trace
reasoning_cfg = OpenRouterReasoningConfig(effort=reasoning_effort, exclude=True)
web_search_cfg: OpenRouterWebSearchOptions | None = None
if search_context_size:
web_search_cfg = OpenRouterWebSearchOptions(search_context_size=search_context_size)
return OpenRouterChatRequest(
model=slug,
messages=_build_messages(system_prompt, prompt, media_blocks),
seed=seed if seed > 0 else None,
reasoning=reasoning_cfg,
web_search_options=web_search_cfg,
)
def _raise_on_error(error: OpenRouterError | None) -> None:
if error:
code = error.code if error.code is not None else "unknown"
raise ValueError(f"OpenRouter error ({code}): {error.message or 'no message'}")
def _extract_text(response: OpenRouterChatResponse) -> str:
_raise_on_error(response.error)
if not response.choices:
raise ValueError("Empty response from OpenRouter (no choices).")
message = response.choices[0].message
if not message:
raise ValueError("Empty response from OpenRouter (no message).")
if message.refusal:
raise ValueError(f"Model refused to respond: {message.refusal}")
return message.content or ""
async def _image_data_to_tensor(cls: type[IO.ComfyNode], item: OpenRouterImageData) -> torch.Tensor:
if item.b64_json:
try:
return bytesio_to_image_tensor(BytesIO(base64.b64decode(item.b64_json)))
except Exception as e:
raise ValueError(f"OpenRouter returned an image that could not be decoded: {e}") from e
if item.url:
return await download_url_to_image_tensor(item.url, cls=cls)
raise ValueError("OpenRouter returned an image with neither inline data nor a URL.")
async def _extract_images(cls: type[IO.ComfyNode], response: OpenRouterImageResponse) -> torch.Tensor:
_raise_on_error(response.error)
tensors = [await _image_data_to_tensor(cls, item) for item in response.data or [] if item.b64_json or item.url]
if not tensors:
raise ValueError("OpenRouter returned no image.")
return torch.cat(pad_images_to_common_channels(tensors))
class OpenRouterLLMNode(IO.ComfyNode):
@classmethod
def define_schema(cls):
return IO.Schema(
node_id="OpenRouterLLMNode",
display_name="OpenRouter LLM",
category="partner/text/OpenRouter",
essentials_category="Text Generation",
description=(
"Generate text responses through OpenRouter. Routes to a curated set of popular "
"models from Anthropic (Claude), OpenAI (GPT), Google (Gemini), xAI (Grok), "
"DeepSeek, Qwen, Mistral, Z.AI (GLM), Moonshot (Kimi), and Perplexity Sonar."
),
inputs=[
IO.String.Input(
"prompt",
multiline=True,
default="",
tooltip="Text input to the model.",
),
IO.DynamicCombo.Input(
"model",
options=_build_model_options(),
tooltip="The OpenRouter model used to generate the response.",
),
IO.Int.Input(
"seed",
default=0,
min=0,
max=2147483647,
control_after_generate=True,
tooltip="Seed for sampling. Set to 0 to omit. Most models treat this as a hint only.",
),
IO.String.Input(
"system_prompt",
multiline=True,
default="",
optional=True,
advanced=True,
tooltip="Foundational instructions that dictate the model's behavior.",
),
],
outputs=[IO.String.Output()],
hidden=[
IO.Hidden.auth_token_comfy_org,
IO.Hidden.api_key_comfy_org,
IO.Hidden.unique_id,
],
is_api_node=True,
price_badge=IO.PriceBadge(
depends_on=IO.PriceBadgeDepends(widgets=["model"]),
expr=_price_badge_jsonata(),
),
)
@classmethod
async def execute(
cls,
prompt: str,
model: dict,
seed: int,
system_prompt: str = "",
) -> IO.NodeOutput:
validate_string(prompt, strip_whitespace=True, min_length=1)
slug: str = model["model"]
spec = _MODELS_BY_SLUG.get(slug)
if spec is None:
raise ValueError(f"Unknown OpenRouter model: {slug}")
reasoning_effort: str | None = model.get("reasoning_effort")
search_context_size: str | None = model.get("search_context_size")
image_tensors: list[Input.Image] = [t for t in (model.get("images") or {}).values() if t is not None]
if image_tensors and sum(get_number_of_images(t) for t in image_tensors) > spec.max_images:
raise ValueError(f"Up to {spec.max_images} images are supported for {slug}.")
video_inputs: list[Input.Video] = [v for v in (model.get("videos") or {}).values() if v is not None]
if video_inputs and len(video_inputs) > spec.max_videos:
raise ValueError(f"Up to {spec.max_videos} videos are supported for {slug}.")
media_blocks: list[OpenRouterContentBlock] = []
if image_tensors:
media_blocks.extend(await _build_image_blocks(cls, spec, image_tensors))
if video_inputs:
media_blocks.extend(await _build_video_blocks(cls, video_inputs))
request = _build_request(
slug,
system_prompt,
prompt,
media_blocks,
seed=seed,
reasoning_effort=reasoning_effort,
search_context_size=search_context_size,
)
response = await sync_op(
cls,
ApiEndpoint(path=OPENROUTER_CHAT_ENDPOINT, method="POST"),
response_model=OpenRouterChatResponse,
data=request,
)
return IO.NodeOutput(_extract_text(response))
@dataclass(frozen=True)
class _ImageModelSpec:
slug: str
price_text: float
price_image_in: float
price_image_out: float
IMAGE_MODELS: list[_ImageModelSpec] = [
_ImageModelSpec("microsoft/mai-image-2.6", 0.000005, 0.000008, 0.000038),
_ImageModelSpec("microsoft/mai-image-2.6-flash", 0.00000175, 0.0000025, 0.000019),
]
_IMAGE_MODELS_BY_SLUG: dict[str, _ImageModelSpec] = {m.slug: m for m in IMAGE_MODELS}
_IMAGE_SIZES: dict[str, dict[str, tuple[int, int]]] = {
"1K": {
"1:1": (1024, 1024),
"16:9": (1360, 768),
"9:16": (768, 1360),
"3:2": (1152, 768),
"2:3": (768, 1152),
"4:3": (1024, 768),
"3:4": (768, 1024),
},
"1.5K": {
"1:1": (1536, 1536),
"16:9": (2048, 1152),
"9:16": (1152, 2048),
"3:2": (1872, 1248),
"2:3": (1248, 1872),
"4:3": (1760, 1312),
"3:4": (1312, 1760),
},
}
_IMAGE_AUTO_ASPECT_RATIO = "auto"
_IMAGE_ASPECT_RATIOS = [*_IMAGE_SIZES["1K"], _IMAGE_AUTO_ASPECT_RATIO]
_IMAGE_AUTO_OUTPUT_SIZE = _IMAGE_SIZES["1.5K"]["1:1"]
_IMAGE_PROMPT_MAX_CHARS = 20000
_IMAGE_MAX_REFERENCES = 5
_IMAGE_REFERENCE_MAX_PIXELS = 2048 * 2048
_IMAGE_REFERENCE_TEXT_OVERHEAD_TOKENS = 256
def _image_tokens(width: int, height: int) -> int:
return width * height // 1024
def _image_model_option(spec: _ImageModelSpec) -> IO.DynamicCombo.Option:
return IO.DynamicCombo.Option(
spec.slug,
[
IO.String.Input(
"prompt",
multiline=True,
default="",
tooltip="Describes the image to generate, or the edit to apply to the reference images. "
f"Up to {_IMAGE_PROMPT_MAX_CHARS} characters.",
),
IO.Combo.Input(
"aspect_ratio",
options=_IMAGE_ASPECT_RATIOS,
default="1:1",
tooltip="Aspect ratio of the generated image, also applied when reference images are connected. "
"'auto' lets the model choose the ratio for text to image (rendered at the 1.5K size) and keeps "
"the aspect ratio of the first reference image when editing.",
),
IO.Combo.Input(
"resolution",
options=list(_IMAGE_SIZES),
default="1K",
tooltip="Output size tier. 1K is about 1 megapixel (1:1 is 1024x1024, 16:9 is 1360x768); "
"1.5K is about 2.3 megapixels (1:1 is 1536x1536, 16:9 is 2048x1152). Ignored when aspect_ratio is 'auto'.",
),
IO.Autogrow.Input(
"images",
template=IO.Autogrow.TemplateNames(
IO.Image.Input("image"),
names=[f"image_{i}" for i in range(1, _IMAGE_MAX_REFERENCES + 1)],
min=0,
),
tooltip=f"Up to {_IMAGE_MAX_REFERENCES} reference images for image-guided editing; "
"a batched input counts once per image.",
),
IO.Int.Input(
"seed",
default=42,
min=0,
max=2147483647,
step=1,
display_mode=IO.NumberDisplay.number,
control_after_generate=True,
tooltip="Seed to determine if node should re-run; the API has no seed, "
"so actual results are nondeterministic regardless of this value.",
),
],
)
def _image_price_badge_jsonata() -> str:
rates_pairs = []
for spec in IMAGE_MODELS:
per_million = [spec.price_text * 1e6, spec.price_image_in * 1e6, spec.price_image_out * 1e6]
rates_pairs.append(f' "{spec.slug}": [{", ".join(f"{p:.8g}" for p in per_million)}]')
rates_block = ",\n".join(rates_pairs)
size_tables = []
for tier, table in _IMAGE_SIZES.items():
ratio_tokens = ", ".join(f'"{ratio}": {_image_tokens(w, h)}' for ratio, (w, h) in table.items())
size_tables.append(f'"{tier.lower()}": {{{ratio_tokens}}}')
default_out = _image_tokens(*_IMAGE_SIZES["1K"]["1:1"])
auto_out = _image_tokens(*_IMAGE_AUTO_OUTPUT_SIZE)
ref_max_tokens = _IMAGE_REFERENCE_MAX_PIXELS // 1024
return (
"(\n"
" $rates := {\n"
f"{rates_block}\n"
" };\n"
f" $outTokens := {{{', '.join(size_tables)}}};\n"
" $r := $lookup($rates, widgets.model);\n"
' $ar := $lookup(widgets, "model.aspect_ratio");\n'
' $res := $lookup(widgets, "model.resolution");\n'
' $prompt := $lookup(widgets, "model.prompt");\n'
' $links := $lookup(inputGroups, "model.images");\n'
' $refs := $type($links) = "number" ? $links : 0;\n'
' $promptTokens := $type($prompt) = "string"\n'
" ? ($length($prompt) + 2 * $count($match($prompt, /[^\\x00-\\x7F]/))) / 4 : 0;\n"
' $table := $type($res) = "string" ? $lookup($outTokens, $res) : null;\n'
' $sized := ($type($table) = "object" and $type($ar) = "string") ? $lookup($table, $ar) : null;\n'
f' $out := $ar = "{_IMAGE_AUTO_ASPECT_RATIO}" ? ($refs > 0 ? {default_out} : {auto_out})'
f' : ($type($sized) = "number" ? $sized : {default_out});\n'
" $r ? ($refs > 0 ? {\n"
' "type": "range_usd",\n'
' "min_usd": ($promptTokens * $r[0] + $out * $r[2]) * 1.43 / 1000000,\n'
f' "max_usd": (($promptTokens + $refs * {_IMAGE_REFERENCE_TEXT_OVERHEAD_TOKENS}) * $r[0]'
f" + $refs * {ref_max_tokens} * $r[1] + $out * $r[2]) * 1.43 / 1000000,\n"
' "format": {"approximate": true}\n'
" } : {\n"
' "type": "usd",\n'
' "usd": ($promptTokens * $r[0] + $out * $r[2]) * 1.43 / 1000000,\n'
' "format": {"approximate": true}\n'
' }) : {"type": "text", "text": "Token-based"}\n'
")"
)
class OpenRouterImageNode(IO.ComfyNode):
@classmethod
def define_schema(cls):
return IO.Schema(
node_id="OpenRouterImageNode",
display_name="OpenRouter Image",
category="partner/image/OpenRouter",
description=(
"Generate or edit images through OpenRouter with Microsoft's MAI-Image-2.6 models: "
"text to image, or image-guided editing with up to five reference images, "
"in seven aspect ratios at 1K or 1.5K."
),
inputs=[
IO.DynamicCombo.Input(
"model",
options=[_image_model_option(spec) for spec in IMAGE_MODELS],
tooltip="The OpenRouter image model used to generate the image.",
),
],
outputs=[IO.Image.Output()],
hidden=[
IO.Hidden.auth_token_comfy_org,
IO.Hidden.api_key_comfy_org,
IO.Hidden.unique_id,
],
is_api_node=True,
price_badge=IO.PriceBadge(
depends_on=IO.PriceBadgeDepends(
widgets=["model", "model.aspect_ratio", "model.resolution", "model.prompt"],
input_groups=["model.images"],
),
expr=_image_price_badge_jsonata(),
),
)
@classmethod
async def execute(cls, model: dict) -> IO.NodeOutput:
slug: str = model["model"]
if slug not in _IMAGE_MODELS_BY_SLUG:
raise ValueError(f"Unknown OpenRouter model: {slug}")
prompt: str = model["prompt"]
validate_string(prompt, strip_whitespace=True, min_length=1)
validate_string(prompt, strip_whitespace=False, max_length=_IMAGE_PROMPT_MAX_CHARS)
aspect_ratio: str = model["aspect_ratio"]
size: str | None = None
if aspect_ratio != _IMAGE_AUTO_ASPECT_RATIO:
width, height = _IMAGE_SIZES[model["resolution"]][aspect_ratio]
size = f"{width}x{height}"
reference_images = [
image for images in (model.get("images") or {}).values() if images is not None for image in images
]
if len(reference_images) > _IMAGE_MAX_REFERENCES:
raise ValueError(
f"A maximum of {_IMAGE_MAX_REFERENCES} reference images is supported; got {len(reference_images)} "
"(a batched input counts once per image)."
)
input_references: list[OpenRouterImageContent] | None = None
if reference_images:
urls = await upload_images_to_comfyapi(
cls,
[image[..., :3] for image in reference_images],
max_images=_IMAGE_MAX_REFERENCES,
mime_type="image/png",
total_pixels=_IMAGE_REFERENCE_MAX_PIXELS,
wait_label="Uploading reference images",
)
input_references = [OpenRouterImageContent(image_url=OpenRouterImageUrl(url=url)) for url in urls]
response = await sync_op(
cls,
ApiEndpoint(path=OPENROUTER_IMAGES_ENDPOINT, method="POST"),
response_model=OpenRouterImageResponse,
asset_urls=True,
data=OpenRouterImageRequest(
model=slug,
prompt=prompt,
aspect_ratio=aspect_ratio if size is None else None,
size=size,
input_references=input_references,
),
)
return IO.NodeOutput(await _extract_images(cls, response))
class OpenRouterExtension(ComfyExtension):
@override
async def get_node_list(self) -> list[type[IO.ComfyNode]]:
return [OpenRouterLLMNode, OpenRouterImageNode]
async def comfy_entrypoint() -> OpenRouterExtension:
return OpenRouterExtension()