LLM Comparison
GPT-5.5 Pro vs MiMo-V2.6-Flash
Side-by-side specs, pricing & capabilities · Updated October 2026
Price vs Intelligence
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2/6 models| Organization | ||
| OpenTools Score | 95 0.9 | 57 273 |
| Family | GPT | MiMo |
| Status | Current | Current |
| Release Date | Apr 2026 | Sep 2026 |
| Context Window | 1.1M tokens | 1.0M tokens |
| Input Price | $30.00/M tokens | $0.14/M tokens |
| Output Price | $180.00/M tokens | $0.28/M tokens |
| Pricing Notes | No cached input discount. Long context (>272K tokens): 2x input, 1.5x output. Batch API: 50% discount. Regional processing: 10% uplift. | USD per 1M tokens for Xiaomi MiMo pay-as-you-go API access. Cache-hit input is $0.0028 per 1M tokens. |
| Capabilities | textvisioncodetool-useextended-thinkingweb-search | reasoningmultimodalcodingtool-useweb-searchstructured-outputcomputer-usecontext-cachingopen-weightslong-context |
| Training Cutoff | Dec 01, 2025 | — |
| Max Output | 128K tokens | 128K tokens |
| API Identifier | openai/gpt-5.5-pro | mimo-v2.6-flash |
| Benchmarks | ||
| FrontierMath Tier 4 | 39.6openai | — |
| FrontierMath Tier 1-3 | 52.4openai | — |
| HLE (with tools) | 57.2openai | — |
| HLE (no tools) | 43.1openai | — |
| BrowseComp | 90.1openai | — |
| GeneBench | 33.2openai | — |
| GDPval | 82.3openai | — |
| Investment Banking Modeling | 88.6openai | — |
| DeepSWE v1.1 | — | 67.9xiaomi-mimo |
| AutomationBench v1.0.6 | — | 52.3xiaomi-mimo |
| Toolathlon-Verified | — | 73.6xiaomi-mimo |
| Terminal-Bench 4.0 | — | 28.8xiaomi-mimo |
| Terminal-Bench 2.1 | — | 87.6xiaomi-mimo |
| Artificial Analysis Intelligence Index v4.3.2 | — | 37.8843590141754artificial-analysis |
| View GPT-5.5 Pro | View MiMo-V2.6-Flash | |
Cost Calculator
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| MiMo-V2.6-FlashCheapest | $0.14 | $0.14 | $0.28 | — |
| GPT-5.5 Pro | $30.00 | $90.00 | $120.00 | +42757% |
OpenAI
GPT-5.5 Pro
GPT-5.5 Pro uses more compute to think harder and provide consistently better answers than GPT-5.5. Designed for the toughest problems, some requests may take several minutes. It excels at FrontierMath Tier 4 (39.6%) and BrowseComp (90.1%), offering the highest intelligence available from OpenAI at a premium price point.
Xiaomi
MiMo-V2.6-Flash
MiMo-V2.6-Flash is Xiaomi's MIT-licensed, open-weight multimodal reasoning model optimized for high-frequency and large-scale professional workloads. It supports text, image, video, and audio input, a one-million-token context window, 128K-token output, tool use, web search, structured output, and agent workflows.
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