GPT-5 Mini vs Grok 4.20 Multi-Agent
A side-by-side comparison of two multimodal models — real specs, pricing, strengths and weaknesses, and a clear verdict on which to choose. Kept current by our agents.
Quick verdict: which should you choose?
Choose GPT-5 Mini if you need
- ✓Choose GPT-5 Mini if you need the lowest price at $2 per million tokens.
- ✓Choose GPT-5 Mini if you need the fastest measured output speed of 96.66 tokens per second.
- ✓Choose GPT-5 Mini if you need efficient handling of 400k-token multimodal contexts with text, images, and files.
- ✓Choose GPT-5 Mini if you need compact multimodal performance for complex multi-turn tasks.
Choose Grok 4.20 Multi-Agent if you need
- ✓Choose Grok 4.20 Multi-Agent if you need the longest context window at 2 million tokens.
- ✓Choose Grok 4.20 Multi-Agent if you need native multi-agent coordination for complex workflows.
- ✓Choose Grok 4.20 Multi-Agent if you need extremely long-context multimodal handling of text, images, and files.
- ✓Choose Grok 4.20 Multi-Agent if you need native support across very large documents without audio or video.
Verdict
GPT-5 Mini leads on price and measured output speed while offering solid multimodal integration for complex multi-turn work. Grok 4.20 Multi-Agent wins on raw context length and multi-agent coordination for very long workflows. GPT-5 Mini is the clearer pick when cost and speed matter; Grok 4.20 Multi-Agent is preferable when maximum context and agent orchestration are required.
GPT-5 Mini vs Grok 4.20 Multi-Agent: side by side
| Spec | GPT-5 Mini | Grok 4.20 Multi-Agent | Winner |
|---|---|---|---|
| Intelligence | 38.9 | — | Tie |
| Output speed | 97 t/s | — | Tie |
| Output price | $2.00/1M | $6.00/1M | GPT-5 Mini |
| Context | 400K | 2000K | Grok 4.20 Multi-Agent |
| Params | — | — | Tie |
| Type | Proprietary | Proprietary | Tie |
| Provider | OpenAI | xAI | Tie |
Detailed analysis
Pricing
Winner: GPT-5 MiniGPT-5 Mini is listed at $2 per million output tokens. Grok 4.20 Multi-Agent is listed at $6 per million output tokens. The threefold price difference favors GPT-5 Mini for cost-sensitive multimodal workloads.
Context Length
Winner: Grok 4.20 Multi-AgentGrok 4.20 Multi-Agent supports a 2-million-token context. GPT-5 Mini supports a 400k-token context. The fivefold larger window gives Grok 4.20 Multi-Agent the edge for extremely long multimodal documents.
Speed & Latency
Winner: GPT-5 MiniGPT-5 Mini reports an output speed of 96.66 tokens per second. Grok 4.20 Multi-Agent speed is not provided. Its multi-agent coordination is noted to potentially add latency on simple tasks.
Multimodal Capabilities
Winner: TieBoth models handle text, images, and files natively. GPT-5 Mini emphasizes compact multimodal design and multi-turn suitability. Grok 4.20 Multi-Agent adds multi-agent workflow coordination but excludes audio and video.
GPT-5 Mini
Pros
- +Handles very large contexts efficiently
- +Integrates text, image, and file inputs
- +Suitable for complex multi-turn tasks
- +Compact multimodal design
Cons
- –Reduced depth on highly complex reasoning vs full-size models
- –Performance depends on input clarity across modalities
- –May require careful prompting for nuanced outputs
Grok 4.20 Multi-Agent
Pros
- +Supports extremely long contexts
- +Coordinates multiple agents for workflows
- +Handles text, images, and files natively
Cons
- –Multi-agent setups may add latency
- –Coordination overhead on simple tasks
- –No audio or video modalities
Summary: GPT-5 Mini vs Grok 4.20 Multi-Agent
Select GPT-5 Mini when price, speed, and efficient 400k multimodal contexts are priorities. Select Grok 4.20 Multi-Agent when maximum 2M-token context and multi-agent orchestration outweigh the higher cost. The choice hinges on whether known metrics or extended context length matter most.
Frequently asked questions
GPT-5 Mini at $2 per million output tokens versus Grok 4.20 Multi-Agent at $6 per million output tokens.