fix(model-capability): 视频模型 - 提示词默认字符上限 1000 调整为 8000 (#511)
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@@ -24,6 +24,15 @@ export type TextCapabilityConfig = {
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export type ImageSizeParameter = "none" | "size" | "aspect_ratio";
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/**
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* 普通视频模型提示词字符数的默认上限。
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*
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* 视频提示词由「输入框文本 + 连线内容 + 技能上下文」合成,远长于用户手输内容,
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* 因此不能沿用偏小的默认值把画布工作流拦在本地。必须与后端
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* `DefaultVideoPromptMaxChars` 保持一致,否则前端放行后端拒绝(或反之)。
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*/
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export const DEFAULT_VIDEO_PROMPT_MAX_CHARS = 8000;
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export type ImageCapabilityConfig = {
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references: {
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promptMaxChars: number;
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@@ -262,7 +271,7 @@ export function defaultModelCapabilityConfig(protocol?: ModelProtocol, model = "
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};
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const video: VideoCapabilityConfig = {
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references: {
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promptMaxChars: 1000,
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promptMaxChars: DEFAULT_VIDEO_PROMPT_MAX_CHARS,
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minImages: 0,
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maxImages: 9,
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maxImageBytes: 30 * 1024 * 1024,
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@@ -2,7 +2,7 @@ import assert from "node:assert/strict";
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import test from "node:test";
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// Bun 直接执行 TypeScript 测试时需要保留扩展名;生产 tsconfig 不包含 test/。
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import { defaultModelCapabilityConfig, normalizeVideoValue } from "../src/lib/model-capabilities.ts";
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import { DEFAULT_VIDEO_PROMPT_MAX_CHARS, defaultModelCapabilityConfig, normalizeVideoValue } from "../src/lib/model-capabilities.ts";
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test("switching to MiniMax H3 replaces an unsupported 720p value with 768P", () => {
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const profile = defaultModelCapabilityConfig("minimax-video", "MiniMax-H3").video!;
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@@ -13,3 +13,21 @@ test("switching to MiniMax H3 replaces an unsupported 720p value with 768P", ()
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resolution: "768P",
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});
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});
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// 视频提示词由「输入框文本 + 连线内容 + 技能上下文」合成,技能上下文预算为 32000,
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// 合成结果远长于用户手输内容。默认上限过小会把正常可用的画布工作流拦在本地预检。
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// 这里锁定默认值本身,避免被改回偏小值(前端放行/后端拒绝的判定必须同源)。
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test("video prompt default allows a composed canvas prompt", () => {
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assert.equal(DEFAULT_VIDEO_PROMPT_MAX_CHARS, 8000);
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for (const protocol of [undefined, "seedance-videos-compatible", "agnes-video", "volcengine-ark-video"]) {
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const profile = defaultModelCapabilityConfig(protocol, "test-model");
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assert.equal(profile.video!.references.promptMaxChars, DEFAULT_VIDEO_PROMPT_MAX_CHARS);
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}
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});
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test("raising the video default leaves text and image limits untouched", () => {
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// 只放宽视频默认值,避免顺带改变其它能力的判定口径。
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const profile = defaultModelCapabilityConfig("seedance-videos-compatible", "sd-2.5");
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assert.equal(profile.text!.references.promptMaxChars, 32000);
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assert.equal(profile.image!.references.promptMaxChars, 32000);
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});
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