GPT-4 vs MiMo-V2.5
GPT-4 (2023) and MiMo-V2.5 (2026) are frontier reasoning models from OpenAI and Xiaomi. GPT-4 ships a 8K-token context window, while MiMo-V2.5 ships a 1M-token context window. On pricing, MiMo-V2.5 costs $0.14/1M input tokens versus $30/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
MiMo-V2.5 is ~21329% cheaper at $0.14/1M; pay for GPT-4 only for coding workflow support.
Decision scorecard
Local evidence first| Signal | GPT-4 | MiMo-V2.5 |
|---|---|---|
| Best for | multimodal apps, tool-calling agents, and provider-routed production | reasoning-heavy apps, multimodal apps, and tool-calling agents |
| Decision fit | Coding, Agents, and Vision | RAG, Agents, and Long context |
| Context window | 8K | 1M |
| Cheapest output | $60/1M tokens | $0.28/1M tokens |
| Provider routes | 4 tracked | 2 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- GPT-4 has broader tracked provider coverage for fallback and route flexibility.
- GPT-4 uniquely exposes Code execution in local model data.
- Local decision data tags GPT-4 for Coding, Agents, and Vision.
- MiMo-V2.5 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- MiMo-V2.5 has the lower cheapest tracked output price at $0.28/1M tokens.
- MiMo-V2.5 uniquely exposes Reasoning in local model data.
- Local decision data tags MiMo-V2.5 for RAG, Agents, and Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
GPT-4
$39,000
Cheapest tracked route/tier: OpenAI API
MiMo-V2.5
$182
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $38,818. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- MiMo-V2.5 is $59.72/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Code execution before moving production traffic.
- MiMo-V2.5 adds Reasoning in local capability data.
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- GPT-4 is $59.72/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Reasoning before moving production traffic.
- GPT-4 adds Code execution in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2023-03-14 | 2026-04-22 |
| Context window | 8K | 1M |
| Parameters | 1.76T (8x222B MoE)* | — |
| Architecture | Mixture of Experts | - |
| License | Proprietary | Proprietary |
| Openness | Proprietary | Proprietary |
| Weights | Not released | Not released |
| Code | Unknown | Unknown |
| Commercial use | Restricted | Restricted |
| Knowledge cutoff | 2021-09 | - |
Pricing and availability
| Pricing attribute | GPT-4 | MiMo-V2.5 |
|---|---|---|
| Input price | $30/1M tokens | $0.14/1M tokens |
| Output price | $60/1M tokens | $0.28/1M tokens |
| Providers |
Capabilities
| Capability | GPT-4 | MiMo-V2.5 |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | No | Yes |
| JSON / Tool use | Yes | Yes |
| Structured outputs | Yes | Yes |
| Code execution | Yes | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark scores are currently available for this pair.
Deep dive
The capability footprint differs most on reasoning mode: MiMo-V2.5, JSON / Tool use: MiMo-V2.5, and code execution: GPT-4. Both models share vision, multimodal input, JSON / 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.
For cost, GPT-4 lists $30/1M input and $60/1M output tokens on the cheapest tracked provider, while MiMo-V2.5 lists $0.14/1M input and $0.28/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts MiMo-V2.5 lower by about $38.82 per million blended tokens. Availability is 4 providers versus 2, so concentration risk also matters.
Choose GPT-4 when coding workflow support and broader provider choice are central to the workload. Choose MiMo-V2.5 when reasoning depth, larger context windows, and lower input-token cost 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, GPT-4 or MiMo-V2.5?
MiMo-V2.5 supports 1M tokens, while GPT-4 supports 8K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is cheaper, GPT-4 or MiMo-V2.5?
MiMo-V2.5 is cheaper on tracked token pricing. GPT-4 costs $30/1M input and $60/1M output tokens. MiMo-V2.5 costs $0.14/1M input and $0.28/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is GPT-4 or MiMo-V2.5 open source?
GPT-4 is listed under Proprietary. MiMo-V2.5 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, GPT-4 or MiMo-V2.5?
Both GPT-4 and MiMo-V2.5 expose vision. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for multimodal input, GPT-4 or MiMo-V2.5?
Both GPT-4 and MiMo-V2.5 expose multimodal input. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Where can I run GPT-4 and MiMo-V2.5?
GPT-4 is available on OpenAI API, Azure OpenAI, Salesforce Models API, and OpenRouter. MiMo-V2.5 is available on OpenRouter and Xiaomi. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Popular comparisons for GPT-4
Popular comparisons for MiMo-V2.5
Last reviewed: 2026-10-20. Data sourced from public model cards and provider documentation.