GPT Audio Mini is $1.4 cheaper per 1M input tokens (70% lower; 3.33x difference).
API cost decision in 10 seconds
GPT Audio Mini vs Nano Banana Pro (Gemini 3 Pro Image Preview)
Pick GPT Audio Mini when budget and context both matter.
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Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick GPT Audio Mini when budget and context both matter.
On the standard 1M input plus 500K output workload, GPT Audio Mini is estimated at $1.8 vs $8 for Nano Banana Pro (Gemini 3 Pro Image Preview), saving $6.2 (77.5% lower).
Cost-first pickGPT Audio Mini
Context-first pickGPT Audio Mini
Sample savings$6.277.5%
10x traffic gap$62
GPT Audio Mini is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $62. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
GPT Audio Mini stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | GPT Audio Mini | Nano Banana Pro (Gemini 3 Pro Image Preview) |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | GPT Audio Mini | $4.2 | $16 |
| Balanced workload | 1M input + 1M output | GPT Audio Mini | $3 | $14 |
| Output-heavy chatbot | 1M input + 5M output | GPT Audio Mini | $12.6 | $62 |
GPT Audio Mini is $9.6 cheaper per 1M output tokens (80% lower; 5x difference).
GPT Audio Mini has 62.46K more context (1.95x larger).
GPT Audio Mini is $6.2 cheaper on the standard workload (77.5% lower).
Estimate your workload cost
Your Workload Cost
This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.
Quick Decision
GPT Audio Mini has the lower input price; GPT Audio Mini has the lower output price; GPT Audio Mini offers the larger context window. For the 1M input plus 500K output sample, GPT Audio Mini is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $1.8 for GPT Audio Mini and $8 for Nano Banana Pro (Gemini 3 Pro Image Preview).
Choose GPT Audio Mini when you care most about lower input-token price, lower output-token price, and larger context window.
Choose Nano Banana Pro (Gemini 3 Pro Image Preview) when its provider, model quality, latency, or availability is more important than the numeric price/context winner.
- On the standard 1M input plus 500K output workload, GPT Audio Mini is estimated at $1.8 vs $8 for Nano Banana Pro (Gemini 3 Pro Image Preview), saving $6.2 (77.5% lower).
- GPT Audio Mini is $6.2 cheaper on the standard workload (77.5% lower).
- GPT Audio Mini is $1.4 cheaper per 1M input tokens (70% lower; 3.33x difference).
- GPT Audio Mini is $9.6 cheaper per 1M output tokens (80% lower; 5x difference).
- GPT Audio Mini has 62.46K more context (1.95x larger).
| Feature | GPT Audio Mini (OpenAI) | Nano Banana Pro (Gemini 3 Pro Image Preview) (Google) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.6 | $2 |
| Completion Price per 1M tokens | $2.4 | $12 |
| Sample Workload Cost 1M input + 500K output | $1.8 | $8 |
| Context Window | 128K | 65.54K |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | GPT Audio Mini | On the standard 1M input plus 500K output workload, GPT Audio Mini is estimated at $1.8 vs $8 for Nano Banana Pro (Gemini 3 Pro Image Preview), saving $6.2 (77.5% lower). |
| High-volume input processing | GPT Audio Mini | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | GPT Audio Mini | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | GPT Audio Mini | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- gpt-oss-120b (free) can replace GPT Audio Mini when lower sample workload cost matters most: $0.
- gpt-oss-20b (free) can replace GPT Audio Mini when lower sample workload cost matters most: $0.
- gpt-oss-20b can replace GPT Audio Mini when lower sample workload cost matters most: $0.1.
- gpt-oss-120b can replace GPT Audio Mini when lower sample workload cost matters most: $0.13.
- Llama 4 Scout offers 10M context with $0.23 sample workload cost.
- Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.
- Grok 4.20 offers 2M context with $2.5 sample workload cost.
- GPT-5.4 offers 1.05M context with $10 sample workload cost.
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