API cost decision in 10 seconds
GPT-5.5 Pro vs 🔥MiMo-V2.5-Pro
Pick MiMo-V2.5-Pro 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 MiMo-V2.5-Pro 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, MiMo-V2.5-Pro is estimated at $2.5 vs $120 for GPT-5.5 Pro, saving $117.5 (97.9% lower).
Cost-first pickMiMo-V2.5-Pro
Context-first pickGPT-5.5 Pro
Sample savings$117.597.9%
10x traffic gap$1175
GPT-5.5 Pro has more context, but MiMo-V2.5-Pro saves $117.5 on the standard workload. At 10x that traffic, the same price gap is about $1175. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
MiMo-V2.5-Pro stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | GPT-5.5 Pro | MiMo-V2.5-Pro |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | MiMo-V2.5-Pro | $240 | $6.5 |
| Balanced workload | 1M input + 1M output | MiMo-V2.5-Pro | $210 | $4 |
| Output-heavy chatbot | 1M input + 5M output | MiMo-V2.5-Pro | $930 | $16 |
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
MiMo-V2.5-Pro has the lower input price, MiMo-V2.5-Pro has the lower output price, and GPT-5.5 Pro offers the larger context window.
For a 1M input token plus 500K output token workload, the estimated API cost is $120 for GPT-5.5 Pro and $2.5 for MiMo-V2.5-Pro.
Choose GPT-5.5 Pro when you care most about larger context window.
Choose MiMo-V2.5-Pro when you care most about lower input-token price, and lower output-token price.
| Feature | GPT-5.5 Pro (OpenAI) | 🔥MiMo-V2.5-Pro (Xiaomi) |
|---|---|---|
| Input Price prompt tokens per 1M | $30 | $1 |
| Completion Price per 1M tokens | $180 | $3 |
| Sample Workload Cost 1M input + 500K output | $120 | $2.5 |
| Context Window | 1.05M | 1.05M |
| Release Date | 2026-04-24 | 2026-04-22 |
| Popularity | #13 |
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...
MiMo-V2.5-Pro is Xiaomi’s flagship model, delivering strong performance in general agentic capabilities, complex software engineering, and long-horizon tasks, with top rankings on benchmarks such as ClawEval, GDPVal, and SWE-bench Pro....
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | MiMo-V2.5-Pro | On the standard 1M input plus 500K output workload, MiMo-V2.5-Pro is estimated at $2.5 vs $120 for GPT-5.5 Pro, saving $117.5 (97.9% lower). |
| High-volume input processing | MiMo-V2.5-Pro | Lower prompt-token price matters most when prompts or retrieved passages dominate the bill. |
| Long responses and chatbots | MiMo-V2.5-Pro | 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 and source files. |