Key4UAPI Interface Integration
  1. Python Configuration Methods
Key4UAPI Interface Integration
  • Key4U English
    • Introduction
    • Contact
    • Quick Start with API
    • API Group Comparison Table
    • API Group Characteristics & Pricing Differences
    • Key4U Agent registration
    • Chat
      • ChatGPT API
        • ChatGPT Audio
          • GPT-4o-audio
          • Audio to Text whisper-1
          • Audio to Text gpt-4o-transcribe
          • Create voice gpt-4o-mini-tts
          • Create translation (not supported)
        • ChatGPT Chat
          • Chat Completion Object
          • Chat completion chunk object
          • Create Chat Completion (Streaming)
          • Create Chat Completion (Non-Streaming)
          • Create Chat Image Recognition (Streaming)
          • Create Chat Image Recognition (Streaming) best64
          • Create Chat Image Recognition (Non-streaming)
          • Create Chat Generation Diagram (Non-streaming)
          • Official Function Calling Invocation
          • Official N Testing
          • List models
          • Create Chat Function Call
          • Create Structured Output
          • Controlling Reasoning Model Effort Level
          • Create chat completion qwen-mt-turbo
          • Create Chat Completion - DeepSeek v3.1 Thinking Level (Streaming)
          • deepseek-ocr recognition
        • ChatGPT Auto-Completion (Completions)
          • Completion object
          • Creation completed
        • ChatGPT Embeddings
          • Embedded Object
          • Create Embedding
        • Web Search
          • web search
      • Anthropic Claude API
        • Chat Completion Object
        • Chat completion chunk object
        • Native format
          • Create Chat Completion (Streaming)
          • Create Function Call (Streaming)
          • Creating Formatted Output
          • Create Thinking Chat
          • PDF Support
          • PDF supports base64 format
          • Online Search
        • chat-compatible format
          • Create Thinking Chat
          • Create Chat Completion (Streaming)
          • Create Chat Completion (Non-Streaming)
          • Create Chat Image Recognition (Streaming)
          • Create Chat Image Recognition (Non-Streaming)
      • Google Gemini API
        • Native format
          • Text Generation
          • Text Generation - Stream
          • Text Generation + Thinking Stream
          • Image Generation
          • Image Generation gemini-2.5-flash-image
          • Image Generation gemini-2.5-flash-image Control Aspect Ratio
          • Image Generation gemini-3-pro-image-preview Control Aspect Ratio + Clarity
          • Image Editing
          • Image Understanding
          • Formatted Output
          • Function call
          • Document Understanding
          • URL context [native format]
          • Code Execution
          • google search
          • Video Understanding
          • URL context
          • Audio Understanding
          • Embeddings
          • TTS Text-to-Speech
          • Text generation gemini-3-pro-preview:generateContent
          • Imagen Generate Images
          • gemini-tts text-to-speech
          • Text Embedding
        • chat-compatible format
          • Gemini Image Generation API [Chat-Compatible Format]
          • Chat Interface [chat compatible format]
          • Chat Interface - Thought 1 [chat compatible format]
          • Chat Interface - Thought 2 [chat compatible format]
          • Image Recognition API [chat-compatible format]
          • Chat + Read File Interface [chat compatible format]
          • Text Embedding [chat compatible format]
    • Chat (Responses)
      • Responses API vs Chat API Comparison
      • Create Model Response
      • Create function call
      • Create Model Response (Streaming Return)
      • Create Model Response (Control Thinking Length)
      • Create Web Search
      • Create model response gpt-5 enable thinking
      • Create Function Call Copy
    • Drawing Model
      • README
      • Image Object
      • Midjourney
        • Upload Image
        • Submit Imagine Task
        • Query task status by task ID
        • Query tasks by ID list
        • Get the seed of the task image
        • Execute Action
        • Submit Blend Task
        • Submit Describe Task
        • Submit Modal
      • Ideogram
        • Generate 3.0 (Text-to-Image) Generate
        • Generate 3.0 (Image Editing) Edit
        • Generate 3.0 (Image Remaster) Remix
        • Generate 3.0 (Image Reconstruction) Reframe
        • Generate 3.0 (Replace Background) Replace Background
        • ideogram (text-to-image)
        • Remix (Blend Image)
        • Upscale (Enhance to High Definition)
        • Describe
      • GPT Image Series
        • Create gpt-image-1
        • Edit gpt-image-1
        • Mask gpt-image-1
        • Create gpt-image-1.5
        • Edit gpt-image-1.5
        • Mask gpt-image-1.5
      • DALL·E 3
        • Create DALL·E 3
      • FLUX Series
        • GPT compatible format
          • Flux Image Creation (OpenAI dall-e-3 Format)
          • Flux Editor (OpenAI DALL-E-3 Format)
        • Replicate Official Format
          • Flux Resolution
          • Integration Tutorial
          • Create task black-forest-labs/flux-kontext-dev
          • Query Task
      • Doubao Series
        • doubao-seedream-3-0-t2i-250415
        • doubao-seededit-3-0-i2i-250628
        • doubao-seedream-4-0-250828-text-to-image
        • doubao-seedream-4-0-250828-image-to-image
        • doubao-seedream-4-0-250828-multi-image-to-image
        • doubao-seedream-4-5-251128 Text-to-Image (Pure Text Input, Single Image Output)
        • doubao-seedream-4-5-251128 Image-to-Image Generation (Single Image Input, Single Image Output)
        • doubao-seedream-4-5-251128 Multi-image Fusion (Multiple Image Input, Single Image Output)
        • doubao-seedream-4-5-251128 Image Group Output (Multiple Image Output)
        • doubao-seedream-4-5-251128 Single Image to Image Group
        • doubao-seedream-4-5-251128 Multiple reference image generation group image
      • Fal.ai platform
        • Status Code
        • Get request result
        • /fal-ai/nano-banana Text-to-Image
        • /fal-ai/nano-banana/edit Image Editing
      • Tencent AIGC Image Generation
        • Status Code
        • Get request result
        • Create Task
      • Qwen Series
        • qwen-image-max
        • z-image-turbo
        • qwen-image-edit-2509
    • Video Model
      • veo video generation
        • Unified Video Format
          • Status Code
          • Create Video
          • Create video with images
          • Query Task
          • Create Video (Reference Image)
        • OpenAI Video Format
          • OpenAI create video with image
          • OpenAI Query Task
          • openai download video
      • Luma video generation
        • Official API Format
          • Status Code
          • Submit Video Generation Task
          • Extended Video
        • Query Task
          • Query a Single Task
          • Batch Retrieve Tasks
      • Runway Video Generation
        • Status Code
        • Submit video generation task
        • Query Video Task (Free)
      • Minimax Video Generation
        • Status Code
        • Submit video generation task
        • Video Task Status Query
        • Image-to-Video
        • First and Last Frame Video
      • Doubao Video Generation
        • Text-to-Video Example
        • Image-to-Video - First Frame
        • seedance-lite-first-and-last-frames
        • Image to Video - Base64 Encoding
        • seedance-lite-reference image
        • Query a Single Task
        • Query Video Generation Task List - Default
        • Query Video Generation Task List - Search Multiple Task IDs
        • seedance-1-5-pro-first-and-last-frames
        • seedance-1-5-pro
      • Sora video generation
        • Unified Video Format
          • Query Task
          • Create video with images sora-2
          • Create video sora-2
          • Create video sora-2-pro
          • Create Video (with Character)
        • chat format
          • Create Video
          • Create video with images
          • Continuous Modification Video Generation
        • OpenAI Official Video Format
          • OpenAI create video with image
          • Creating Videos with Storyboards
          • OpenAI create video with image private mode
          • OpenAI Create Video (with Character)
          • OpenAI video editing
          • openai download video
          • OpenAI Query Task
        • Create Role
      • Grok Video Generation
        • Unified Video Format
          • Status Code
          • Create Video
          • Query Task
      • Tongyi Wanxiang Video Generation
        • Generate Video
        • Video Query
      • Tencent AIGC Video Generation
        • Status Code
        • Create Task
        • Get request result
    • GPTs Related
      • Introduction
      • GPTs Conversation
    • Text-to-Music Suno
      • Instructions
      • parameter
      • Task Submission
        • Generate Song (Inspiration Mode)
        • Generate Song (Custom Mode)
        • Generate Song (Continuation Mode)
        • Generate Song (Artist Style)
        • Generate Song (Upload Song for Secondary Creation)
        • Generate Song (Concatenate Song)
        • Generate Lyrics
        • Song Concatenation
        • Report upload completed
        • Query Upload Processing Status
        • Initialize audio file
        • Request Upload Authorization
        • S3 Upload Example
        • Scenario 1: Inspiration Mode
        • Scenario 2: Custom.Lyrics.SongName
        • Scenario 3: Pure Music - Custom
      • Query Interface
        • Batch Retrieve Tasks
        • Query a Single Task
        • Get WAV
        • Timing: Lyrics, Audio Timeline
        • Get Scene Details
    • Python Configuration Methods
      • Python Speech-to-Text
      • Python Text-to-Speech
      • Python Using Embeddings for Vectorization
      • Python Calling DALL·E
      • Simple Python OpenAI Function-Calling Demo
      • Simple Python LangChain calling OpenAI demo
      • Python llama_index Configuration
      • Python Fundamentals Conversation
      • Python uses gpt-4o to recognize images - local images
      • Using Python with GPT-4o to Recognize Images
      • Using Claude to Recognize Images in Python
      • Python library streaming output
      • GPT Realtime Model Invocation
      • Python request streaming output demo
      • Python using gpt-image-1 to create and edit images
      • Python OpenAI official library (using AutoGPT, langchain, etc.)
      • Python continuous conversation
    • Rerank Reranking Model
      • Reordering
    • Kling Platform
      • Callback Protocol
      • Text-to-video
        • Text-to-video
        • Query Task (Single)
      • Image-to-Video
        • Image-to-Video
        • Query Task (Single)
      • Omni-Video
        • Omni-Video
        • Query Task (Single)
      • Multi-image reference video
        • Multi-image reference video
        • Query Task (Single)
      • Multimodal Video Editing
        • Initialize video to be edited
        • Add Video Selection
        • Delete Video Selection
        • Preview Selected Region Video
        • Multimodal Video
        • Query Task (Single)
      • Video Extension
        • Video Extension
        • Query Task (Single)
      • Video Effects
        • Video Effects
        • Query Task (Single)
      • Image Generation
        • Image Generation
        • Query Task (Single)
      • Multi-image reference image generation
        • Multi-image reference image generation
        • Query Task (Single)
      • Omni-Image
        • Omni-Image
        • Query Task (Single)
      • Expand image
        • Expand image
        • Query Task (Single)
      • Image Recognition
        • Image Recognition
      • Digital human
        • Digital human
        • Query Task (Single)
      • Text-to-Speech Sound Effects
        • Text-to-Speech Sound Effects
        • Query Task (Single)
      • Video-to-Audio
        • Video-to-Audio
        • Query Task (Single)
      • Speech Synthesis
        • Speech Synthesis
      • Virtual Try-On
        • Virtual Try-On
        • Query Task (Single)
      • lip-sync
        • Face Recognition
        • lip-sync
        • Query Task (Single)
      • Custom Voice
        • Custom Voice
        • Query Custom Voice (Single)
        • Query Official Voice
        • Delete Custom Voice
      • Action Control
        • Action Control
        • Query Task (Single)
      • subject
        • subject
    • Replicate Aggregation Platform
      • Integration Tutorial
      • Flux Resolution
      • Query Task
      • Create Task - Via Model Version (predictions)
      • Create task stability-ai/stable-diffusion
      • Create task stability-ai/sdxl
      • Create Task stability-ai/stable-diffusion-inpainting
      • Create task stability-ai/stable-diffusion-img2img
      • Create task lucataco/flux-schnell-lora
      • Create task lucataco/flux-dev-lora
      • Create task andreasjansson/stable-diffusion-animation
      • Create task sujaykhandekar/object-removal
      • Create task cjwbw/rembg
      • Create task lucataco/animate-diff
      • Create task ideogram-ai/ideogram-v2-turbo
      • Create task black-forest-labs/flux-kontext-dev
      • Create task minimax/video-01-live
      • Create task minimax/video-01
      • Create task recraft-ai/recraft-v3
      • Create task recraft-ai/recraft-v3-svg
      • Create task black-forest-labs/flux-1.1-pro-ultra
      • Create task black-forest-labs/flux-kontext-pro
      • Create task black-forest-labs/flux-kontext-max
      • Create task flux-kontext-apps/multi-image-kontext-max
      • Create task flux-kontext-apps/multi-image-kontext-pro
      • Create task lucataco/remove-bg
      • Create task riffusion/riffusion
      • Create task black-forest-labs/flux-fill-dev
      • Create task black-forest-labs/flux-fill-pro
      • Create task google/imagen-4-fast
      • Create task google/imagen-4-ultra
      • Create task google/imagen-4
      • Create task prunaai/vace-14b
      • Create task bytedance/seedream-4
    • Minimax Platform
      • Create Asynchronous Text-to-Speech Task V2
      • Synchronous Text-to-Speech V2
      • Text-to-Image-to-Video Generation Task
      • Upload Reproduced Audio
      • Upload Sample Audio
      • First and Last Frame Video Generation
      • Timbre Quick Replication
      • Query video generation task status
      • Retrieval (for video download, asynchronous audio download)
      • Text Synthesis
      • Query Speech Synthesis Task Status
      • Timbre Design
    • minimax-voice (TTS)
      • Generate speech from Minimax
    • Vidu Platform: Video Generation, Image Generation, Audio Generation
      • Status Code
      • Create a text-to-video task
      • Create Image-to-Video Task
      • Create Image Generation Task
      • Create Text-to-Speech Audio Task
      • Speech Synthesis
      • Create Reference Video Task
      • Create First and Last Frame Generated Video Task
      • Get request result
    • Fal-ai Aggregation Platform
      • Integration Tutorial
      • falai-veo3 video generation
        • /fal-ai/veo3
        • /fal-ai/veo3/fast/image-to-video
        • /fal-ai/veo3/fast
        • /fal-ai/veo3/requests/{request_id}
        • /fal-ai/veo3/image-to-video
      • Get request result
      • /fal-ai/flux-1/dev
      • /fal-ai/flux-1/dev/image-to-image
      • /fal-ai/flux-1/dev/redux
      • /fal-ai/flux-1/schnell/redux
      • /fal-ai/flux-pro/kontext
      • /fal-ai/flux-pro/kontext/text-to-image
      • /fal-ai/flux-pro/kontext/max
      • /fal-ai/flux-pro/kontext/max/multi
      • /fal-ai/wan/v2.2-a14b/image-to-image
      • /fal-ai/bytedance/seedream/v4/text-to-image
      • /fal-ai/bytedance/seedream/v4/edit
      • /fal-ai/vidu/reference-to-image
      • /fal-ai/imagen4/preview
      • /fal-ai/qwen-image-edit-lora
      • /fal-ai/qwen-image-edit-plus
      • /fal-ai/kling-video/v2.5-turbo/pro/text-to-video
      • /fal-ai/kling-video/v2.5-turbo/pro/image-to-video
      • /fal-ai/flux-lora
      • /fal-ai/flux-lora/image-to-image
      • /fal-ai/flux-lora/inpainting
      • /fal-ai/kling-video/v2.5-turbo/pro/text-to-video
      • /fal-ai/qwen-image-edit-lora
    • PHP Configuration Methods
      • PHP Image Editing Demo
    • Node.js configuration methods
      • Node.js Basic Conversation
    • Tutorials for Various Plugins/Software
      • Codex Configuration Tutorial
      • OpenClaw Clawdbot Custom Relay Station Configuration Tutorial
      • N8N Workflow Using Relay API Tutorial
      • OpenCode Configuration Tutorial
      • Gemini CLI Relay Station Configuration and Usage Tutorial
      • Claude Code Installation and Usage Tutorial
      • CherryStudio Calling Claude MCP
      • Cherry Studio Configuration Tutorial
      • Cherry Studio Configuration Tutorial for Banana Pro 4K and Resolution Settings
      • CherryStudio Configuration o4 Reasoning Level
      • Dou Zi Workflow Simple Configuration from Input to URL Retrieval
      • Add Model to Dify
      • Cline Configuration Tutorial
      • Aider Configuration Tutorial
      • Cursor Configuration Tutorial
      • LobChat Setup Tutorial
      • ChatBox (Recommended)
      • Open Source gpt_academic
      • NextChat Setup Tutorial
      • Zotero GPT Configuration Method
      • CLAUDE DEV Configuration Tutorial
      • Immersive Translation - Configure GPT Translation
      • Browser Extension ChatGPT Sidebar
      • ChatGPT-on-WeChat Configuration Tutorial
      • ChatGPT GPT Academic Optimization Configuration GPT Tutorial
      • RikkaHub Configuration Tutorial
      • Coze Workflow Relay API Tutorial
      • n8n Workflow Example: Fetching Local Images and Generating Videos
      • OpenClaw Latest Version Custom Relay Station Configuration Tutorial
    • Help Center
      • AI return field: thinking-related
      • HTTP Status Codes and Their Meanings
      • Self-hosted Image Hosting API
  1. Python Configuration Methods

Python Text-to-Speech

Text-to-Speech (TTS) API Guide#

Overview#

The Audio API provides a speech endpoint that implements the following features based on TTS models:
📝 Blog article narration
🌍 Multi-language audio generation
🎵 Real-time audio stream output
Important Note: You must disclose to users that the audio they hear is AI-generated speech, not human voice

Basic Usage#

Basic Example#

Features#

Audio Quality Options#

tts-1: Low latency, suitable for real-time applications
tts-1-hd: Higher quality, may have less static noise

Available Voices#

alloy
echo
fable
nova
shimmer
onyx

Supported Output Formats#

FormatCharacteristicsUse Cases
MP3Default formatGeneral use
OpusLow latencyWeb streaming and communication
AACEfficient compressionMobile device playback
FLACLossless compressionAudio archiving
WAVUncompressedLow-latency applications
PCMRaw samples24kHz, 16-bit signed

Real-time Audio Streaming#

Supported Languages#

Multiple languages are supported, including:
Asian languages: Chinese, Japanese, Korean, etc.
European languages: English, French, German, etc.
Other languages: Arabic, Hindi, etc.
Note: Current voices are primarily optimized for English

Frequently Asked Questions#

Q: How do I control the emotion of the generated audio?#

A: There is currently no direct control mechanism. Uppercase letters or grammar may influence the output, but the effect is uncertain.

Q: Can I create custom voices?#

A: Creating custom voices is not supported.

Q: Who owns the generated audio?#

A: The audio is owned by the creator, but you must inform users that it is AI-generated audio.
Modified at 2026-03-06 15:34:52
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