GPT-4o mini Audio vs Gemini 3 Pro

Compare GPT-4o mini Audio and Gemini 3 Pro. Find out which one is better for your use case.

Model Comparison

FeatureGPT-4o mini AudioGemini 3 Pro
ProviderOpenAIGoogle
Model Typeaudiotext
Context Window128,000 tokens1,000,000 tokens
Input Cost$0.15 / 1M tokens$4.00 / 1M tokens
Output Cost$0.60 / 1M tokens$18.00 / 1M tokens

Strengths & Best Use Cases

GPT-4o mini Audio

1. 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.

Gemini 3 Pro

1. State-of-the-art reasoning

  • Top performance across academic reasoning, scientific knowledge, math, and complex problem-solving.
  • Excels at long-horizon, multi-step workflows and deep logical interpretation.

2. World-leading multimodal capabilities

  • Natively understands text, images, videos, audio, and code.
  • Ranked highest on benchmarks like MMMU-Pro, Video-MMMU, ScreenSpot-Pro.

3. Exceptional coding + agentic workflows

  • Strong in competitive coding and real-world agentic tasks (SWE-Bench Verified, Terminal-Bench, LiveCodeBench).
  • Improved tool calling, planning, and execution for autonomous or semi-autonomous agents.

4. Powerful for long-context tasks

  • Effective at 128K-1M context windows with high retrieval accuracy.
  • Ideal for document-heavy workflows, research, analysis, multi-file coding, and multi-document reasoning.

5. Strong information synthesis and interpretation

  • Outperforms peers in chart reasoning, OCR, structured extraction, and screen understanding.
  • Excellent at combining multimodal inputs into coherent, concise answers.

6. High reliability for enterprise tasks

  • Benchmarks show superior factuality, grounding, and parametric knowledge.
  • Strong multilingual accuracy and global commonsense performance.

7. Optimized for production agents

  • Designed for complex multi-step planning, simultaneous task execution, and improved consistency.
  • Works across coding, research, creative workflows, UI generation, and data-heavy applications.

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