MiMo-V2-Omni is $1.6 cheaper per 1M input tokens (80% lower; 5x difference).
API cost decision in 10 seconds
MiMo-V2-Omni vs Gemini 3.1 Pro Preview Custom Tools
Pick MiMo-V2-Omni for lower cost; pick Gemini 3.1 Pro Preview Custom Tools only if the larger context window matters more.
Page updated:
Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick MiMo-V2-Omni for lower cost; pick Gemini 3.1 Pro Preview Custom Tools only if the larger context window matters more.
On the standard 1M input plus 500K output workload, MiMo-V2-Omni is estimated at $1.4 vs $8 for Gemini 3.1 Pro Preview Custom Tools, saving $6.6 (82.5% lower).
Cost-first pickMiMo-V2-Omni
Context-first pickGemini 3.1 Pro Preview Custom Tools
Sample savings$6.682.5%
10x traffic gap$66
Gemini 3.1 Pro Preview Custom Tools has more context, but MiMo-V2-Omni saves $6.6 on the standard workload. At 10x that traffic, the same price gap is about $66. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
MiMo-V2-Omni stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | MiMo-V2-Omni | Gemini 3.1 Pro Preview Custom Tools |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | MiMo-V2-Omni | $3 | $16 |
| Balanced workload | 1M input + 1M output | MiMo-V2-Omni | $2.4 | $14 |
| Output-heavy chatbot | 1M input + 5M output | MiMo-V2-Omni | $10.4 | $62 |
MiMo-V2-Omni is $10 cheaper per 1M output tokens (83.3% lower; 6x difference).
Gemini 3.1 Pro Preview Custom Tools has 786.61K more context (4x larger).
MiMo-V2-Omni is $6.6 cheaper on the standard workload (82.5% 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
MiMo-V2-Omni has the lower input price; MiMo-V2-Omni has the lower output price; Gemini 3.1 Pro Preview Custom Tools offers the larger context window. For the 1M input plus 500K output sample, MiMo-V2-Omni is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $1.4 for MiMo-V2-Omni and $8 for Gemini 3.1 Pro Preview Custom Tools.
Choose MiMo-V2-Omni when you care most about lower input-token price, and lower output-token price.
Choose Gemini 3.1 Pro Preview Custom Tools when you care most about larger context window.
- On the standard 1M input plus 500K output workload, MiMo-V2-Omni is estimated at $1.4 vs $8 for Gemini 3.1 Pro Preview Custom Tools, saving $6.6 (82.5% lower).
- MiMo-V2-Omni is $6.6 cheaper on the standard workload (82.5% lower).
- MiMo-V2-Omni is $1.6 cheaper per 1M input tokens (80% lower; 5x difference).
- MiMo-V2-Omni is $10 cheaper per 1M output tokens (83.3% lower; 6x difference).
- Gemini 3.1 Pro Preview Custom Tools has 786.61K more context (4x larger).
| Feature | MiMo-V2-Omni (Xiaomi) | Gemini 3.1 Pro Preview Custom Tools (Google) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.4 | $2 |
| Completion Price per 1M tokens | $2 | $12 |
| Sample Workload Cost 1M input + 500K output | $1.4 | $8 |
| Context Window | 262.14K | 1.05M |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | MiMo-V2-Omni | On the standard 1M input plus 500K output workload, MiMo-V2-Omni is estimated at $1.4 vs $8 for Gemini 3.1 Pro Preview Custom Tools, saving $6.6 (82.5% lower). |
| High-volume input processing | MiMo-V2-Omni | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | MiMo-V2-Omni | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Gemini 3.1 Pro Preview Custom Tools | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- MiMo-V2-Flash can replace MiMo-V2-Omni when lower sample workload cost matters most: $0.25.
- Gemma 4 26B A4B (free) can replace Gemini 3.1 Pro Preview Custom Tools when lower sample workload cost matters most: $0.
- Gemma 4 31B (free) can replace Gemini 3.1 Pro Preview Custom Tools when lower sample workload cost matters most: $0.
- Lyria 3 Pro Preview can replace Gemini 3.1 Pro Preview Custom Tools when lower sample workload cost matters most: $0.
- 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.
- DeepSeek V4 Flash · DeepSeek · #1
- Hy3 preview · Tencent · #2
- Claude Opus 4.7 · Anthropic · #3
- Claude Sonnet 4.6 · Anthropic · #4
Cheaper alternatives
Review low-cost models sorted by a standard 1M input plus 500K output workload.
Open cheapest modelsLarger context alternatives
Find models with larger context windows for RAG, long documents, and codebase review.
Open largest context modelsProvider catalogs
Compare models within provider hubs before choosing a final API vendor.
Open provider hubsXiaomi catalog
Review all tracked Xiaomi models before deciding whether this matchup is the right shortlist.
Open Xiaomi modelsGoogle catalog
Check other Google models with comparable pricing, context, or release timing.
Open Google modelsMiMo-V2-Omni is a frontier omni-modal model that natively processes image, video, and audio inputs within a unified architecture. It combines strong multimodal perception with agentic capability - visual grounding, multi-step...
Gemini 3.1 Pro Preview Custom Tools is a variant of Gemini 3.1 Pro that improves tool selection behavior by preventing overuse of a general bash tool when more efficient third-party...