Grok 4.3 Beta vs Xiaomi MiMo-V2.5-Pro
Grok 4.3 Beta (2026) and Xiaomi MiMo-V2.5-Pro (2026) are agentic coding models from xAI and Xiaomi. Grok 4.3 Beta ships a 2M-token context window, while Xiaomi MiMo-V2.5-Pro ships a 1M-token context window. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing. The goal is to make the tradeoff clear before deeper testing.
Xiaomi MiMo-V2.5-Pro is safer overall; choose Grok 4.3 Beta when reasoning depth matters.
Specs
| Released | 2026-04-17 | 2026-04-22 |
| Context window | 2M | 1M |
| Parameters | ~0.5T | 1T |
| Architecture | - | mixture of experts |
| License | Proprietary | Proprietary |
| Knowledge cutoff | - | - |
Pricing and availability
| Grok 4.3 Beta | Xiaomi MiMo-V2.5-Pro | |
|---|---|---|
| Input price | - | $1/1M tokens |
| Output price | - | $3/1M tokens |
| Providers | - |
Capabilities
| Grok 4.3 Beta | Xiaomi MiMo-V2.5-Pro | |
|---|---|---|
| Vision | ||
| Multimodal | ||
| Reasoning | ||
| Function calling | ||
| Tool use | ||
| Structured outputs | ||
| Code execution |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: Grok 4.3 Beta, multimodal input: Grok 4.3 Beta, and reasoning mode: Grok 4.3 Beta. Both models share function calling, tool use, and structured outputs, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
Pricing coverage is uneven: Grok 4.3 Beta has no token price sourced yet and Xiaomi MiMo-V2.5-Pro has $1/1M input tokens. Provider availability is 0 tracked routes versus 1. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Grok 4.3 Beta when reasoning depth and larger context windows are central to the workload. Choose Xiaomi MiMo-V2.5-Pro when coding workflow support and broader provider choice are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions. It also helps separate model capability from provider packaging, which can change cost and latency.
FAQ
Which has a larger context window, Grok 4.3 Beta or Xiaomi MiMo-V2.5-Pro?
Grok 4.3 Beta supports 2M tokens, while Xiaomi MiMo-V2.5-Pro supports 1M tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Grok 4.3 Beta or Xiaomi MiMo-V2.5-Pro open source?
Grok 4.3 Beta is listed under Proprietary. Xiaomi MiMo-V2.5-Pro is listed under Proprietary. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, Grok 4.3 Beta or Xiaomi MiMo-V2.5-Pro?
Grok 4.3 Beta has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for multimodal input, Grok 4.3 Beta or Xiaomi MiMo-V2.5-Pro?
Grok 4.3 Beta has the clearer documented multimodal input signal in this comparison. If multimodal input is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for reasoning mode, Grok 4.3 Beta or Xiaomi MiMo-V2.5-Pro?
Grok 4.3 Beta has the clearer documented reasoning mode signal in this comparison. If reasoning mode is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Grok 4.3 Beta and Xiaomi MiMo-V2.5-Pro?
Grok 4.3 Beta is available on the tracked providers still being sourced. Xiaomi MiMo-V2.5-Pro is available on OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-04-25. Data sourced from public model cards and provider documentation.