Build AI products powered by GPT-5.1 or GPT-4o mini Audio - no coding required
Start buildingGPT-5.1 vs GPT-4o mini Audio
Compare GPT-5.1 and GPT-4o mini Audio. Build AI products powered by either model on Appaca.
Get startedModel Comparison
| Feature | GPT-5.1 | GPT-4o mini Audio |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Model Type | text | audio |
| Context Window | 400,000 tokens | 128,000 tokens |
| Input Cost | $1.25/ 1M tokens | $0.15/ 1M tokens |
| Output Cost | $10.00/ 1M tokens | $0.60/ 1M tokens |
Build with it | Build with GPT-5.1 | Build with GPT-4o mini Audio |
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Multi-Model Support
Power your AI product with GPT-5.1, GPT-4o mini Audio, or any supported model. Switch anytime.
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We handle all API integrations. You focus on building your AI product, not managing keys.
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Strengths & Best Use Cases
GPT-5.1
OpenAI1. Configurable Reasoning for Agentic Tasks
- Built to excel in autonomous or semi-autonomous coding workflows, with adjustable reasoning effort for planning, refactoring and debugging.
2. Fast Multi-Modal Input with Large Output
- Accepts both text and image inputs while producing text outputs.
- Offers up to 128 k output tokens, allowing long responses and code generation across multiple files.
3. Large Context & Knowledge Cut-Off
- 400 k token context window supports processing large codebases or documents.
- Knowledge cut-off of Sep 30 2024 ensures familiarity with recent tools and frameworks.
4. Reasoning Token Support
- Provides explicit support for reasoning tokens, enabling developers to fine-tune the balance between reasoning depth and speed.
GPT-4o mini Audio
OpenAI1. Affordable multimodal audio model
- Extremely low-cost audio + text model for production-scale usage.
- Ideal for startups and high-volume traffic apps.
2. Fast real-time performance
- Low latency suitable for responsive voice assistants, AI phone bots, IVR flows, and audio chat apps.
- Great when speed matters more than deep reasoning.
3. Audio input and audio output
- Accepts raw audio (speech, recordings, commands).
- Generates natural audio responses via the REST API.
4. Large 128K context window
- Handles long conversations, transcriptions, and extended instructions.
- Supports multi-step voice workflows or multi-part inputs.
5. Great for lightweight reasoning workloads
- Performs well for classification, instructions, Q&A, rewriting, and audio-driven tasks.
- Good for voice agents that don't need high-end reasoning like GPT-5.1.
6. Works across major endpoints
- Chat Completions, Responses API, Realtime API, Assistants, Batch.
- Supports streaming and function calling.
7. Scalable for commercial production
- Perfect for customer support hotlines, appointment bots, FAQ voice agents, or embedded voice UI in apps.
- Reliable and predictable output behavior given its price.
8. Preview model designed for experimentation
- Lets teams prototype voice-first features with minimal cost.
- Useful stepping-stone before upgrading to GPT-4o Audio or GPT-5 audio models.
Prompts to Get Started
Use these prompts to power AI products you build on Appaca. Each works great with the models above.
Best for GPT-5.1
textDigital Marketing Plan (Channel + Funnel Blueprint)
Build a comprehensive digital marketing plan that targets a persona, addresses their challenges, and highlights your USP across channels and the funnel.
Marketing Tech Stack (MarTech) Recommendations
Design a marketing technology stack that supports executing and measuring persona-targeted campaigns centered on your USP and challenges.
Customer Data Insights (Segmentation + Messaging)
Analyze customer data patterns and convert insights into targeted messaging that emphasizes your USP and addresses persona challenges.
Best for GPT-4o mini Audio
audioFormative Assessment Ideas Generator
Generate diverse formative assessment strategies that check for understanding throughout a lesson without formal testing.
Marketing-to-Sales Enablement Training (USP Talk Track)
Create a training program for the sales team to communicate your USP and address persona challenges with consistent messaging and proof.
Content Hub (Central Resource Library)
Create a website content hub that centralizes resources related to persona challenges and positions your USP as the solution.
What AI product will you build?
Describe your AI product idea and Appaca will help you create it - powered by GPT-5.1, GPT-4o mini Audio, or any model you choose.
Free to start • No coding required • Launch to customers
See how Appaca works
Turn your AI ideas into AI products with the right AI model
Appaca is the complete platform for building AI agents, automations, and customer-facing interfaces. No coding required.
Customer-facing Interface
Create and style user interfaces for your AI agents and tools easily according to your brand.
Multimodel LLMs
Create, manage, and deploy custom AI models for text, image, and audio - trained on your own knowledge base.
Agentic workflows and integrations
Create a workflow for your AI agents and tools to perform tasks and integrations with third-party services.
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Monetize your AI
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“I've built with various AI tools and have found Appaca to be the most efficient and user-friendly solution.”
Cheyanne Carter
Founder & CEO, Edubuddy
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Build AI products powered by GPT-5.1 or GPT-4o mini Audio
Create AI tools and agents on Appaca. Choose your model, build your product, launch to customers.