OpenAI GPT Mini Latest is $29.25 cheaper per 1M input tokens (97.5% lower; 40x difference).
API cost decision in 10 seconds
NewOpenAI GPT Mini Latest vs GPT-5.5 Pro
Pick OpenAI GPT Mini Latest for lower cost; pick GPT-5.5 Pro only if the larger context window matters more.
Pricing data updated:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick OpenAI GPT Mini Latest for lower cost; pick GPT-5.5 Pro only if the larger context window matters more.
On the standard 1M input plus 500K output workload, OpenAI GPT Mini Latest is estimated at $3 vs $120 for GPT-5.5 Pro, saving $117 (97.5% lower).
Cost-first pickOpenAI GPT Mini Latest
Context-first pickGPT-5.5 Pro
Sample savings$11797.5%
10x traffic gap$1170
GPT-5.5 Pro has more context, but OpenAI GPT Mini Latest saves $117 on the standard workload. At 10x that traffic, the same price gap is about $1170. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
OpenAI GPT Mini Latest stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | OpenAI GPT Mini Latest | GPT-5.5 Pro |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | OpenAI GPT Mini Latest | $6 | $240 |
| Balanced workload | 1M input + 1M output | OpenAI GPT Mini Latest | $5.25 | $210 |
| Output-heavy chatbot | 1M input + 5M output | OpenAI GPT Mini Latest | $23.25 | $930 |
OpenAI GPT Mini Latest is $175.5 cheaper per 1M output tokens (97.5% lower; 40x difference).
GPT-5.5 Pro has 650K more context (2.62x larger).
OpenAI GPT Mini Latest is $117 cheaper on the standard workload (97.5% 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
OpenAI GPT Mini Latest has the lower input price; OpenAI GPT Mini Latest has the lower output price; GPT-5.5 Pro offers the larger context window. For the 1M input plus 500K output sample, OpenAI GPT Mini Latest is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $3 for OpenAI GPT Mini Latest and $120 for GPT-5.5 Pro.
Choose OpenAI GPT Mini Latest when you care most about lower input-token price, and lower output-token price.
Choose GPT-5.5 Pro when you care most about larger context window.
- On the standard 1M input plus 500K output workload, OpenAI GPT Mini Latest is estimated at $3 vs $120 for GPT-5.5 Pro, saving $117 (97.5% lower).
- OpenAI GPT Mini Latest is $117 cheaper on the standard workload (97.5% lower).
- OpenAI GPT Mini Latest is $29.25 cheaper per 1M input tokens (97.5% lower; 40x difference).
- OpenAI GPT Mini Latest is $175.5 cheaper per 1M output tokens (97.5% lower; 40x difference).
- GPT-5.5 Pro has 650K more context (2.62x larger).
| Feature | NewOpenAI GPT Mini Latest (OpenAI) | GPT-5.5 Pro (OpenAI) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.75 | $30 |
| Completion Price per 1M tokens | $4.5 | $180 |
| Sample Workload Cost 1M input + 500K output | $3 | $120 |
| Context Window | 400K | 1.05M |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | OpenAI GPT Mini Latest | On the standard 1M input plus 500K output workload, OpenAI GPT Mini Latest is estimated at $3 vs $120 for GPT-5.5 Pro, saving $117 (97.5% lower). |
| High-volume input processing | OpenAI GPT Mini Latest | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | OpenAI GPT Mini Latest | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | GPT-5.5 Pro | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- gpt-oss-120b (free) can replace OpenAI GPT Mini Latest when lower sample workload cost matters most: $0.
- gpt-oss-20b (free) can replace OpenAI GPT Mini Latest when lower sample workload cost matters most: $0.
- gpt-oss-20b can replace OpenAI GPT Mini Latest when lower sample workload cost matters most: $0.1.
- gpt-oss-120b can replace OpenAI GPT Mini Latest 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.
- No popular competitor is currently available.
Cheaper alternatives
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GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...