GPT-5.4 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-5.4 Mini if you need
- ✓Choose GPT-5.4 Mini if you need a published intelligence index of 40 and output speed of 170.35 t/s.
- ✓Choose GPT-5.4 Mini if you need flexible multimodal workflows optimized for document-heavy tasks.
- ✓Choose GPT-5.4 Mini if you need a 400k context window with native file, image, and text support from OpenAI.
- ✓Choose GPT-5.4 Mini if you need single-model processing without multi-agent coordination overhead.
Choose Grok 4.20 Multi-Agent if you need
- ✓Choose Grok 4.20 Multi-Agent if you need a 2M context window for extremely long inputs.
- ✓Choose Grok 4.20 Multi-Agent if you need the lower price of $2.5 per 1M tokens.
- ✓Choose Grok 4.20 Multi-Agent if you need native multi-agent coordination across text, images, and files.
- ✓Choose Grok 4.20 Multi-Agent if you need xAI's proprietary handling of massive context tasks.
Verdict
Grok 4.20 Multi-Agent leads on context length and price while GPT-5.4 Mini provides the only published speed and intelligence metrics. GPT-5.4 Mini suits document-heavy single-model workflows; Grok 4.20 Multi-Agent targets massive-context multi-agent orchestration. Both handle text, images, and files natively but differ in scale and coordination overhead.
GPT-5.4 Mini vs Grok 4.20 Multi-Agent: side by side
| Spec | GPT-5.4 Mini | Grok 4.20 Multi-Agent | Winner |
|---|---|---|---|
| Intelligence | 40 | — | Tie |
| Output speed | 170 t/s | — | Tie |
| Output price | $4.50/1M | $2.50/1M | Grok 4.20 Multi-Agent |
| Context | 400K | 2000K | Grok 4.20 Multi-Agent |
| Params | — | — | Tie |
| Provider | OpenAI | xAI | Tie |
Detailed analysis
Pricing
Winner: Grok 4.20 Multi-AgentGrok 4.20 Multi-Agent costs $2.5 per 1M tokens versus GPT-5.4 Mini at $4.5 per 1M. The $2 difference favors Grok for high-volume usage. Both are proprietary with no open-source pricing alternative given.
Context Length
Winner: Grok 4.20 Multi-AgentGrok 4.20 Multi-Agent offers 2M context compared with GPT-5.4 Mini's 400k. This gives Grok a fivefold advantage for massive inputs. GPT-5.4 Mini notes that long contexts can increase latency while Grok highlights support for extremely long contexts.
Speed & Intelligence
Winner: GPT-5.4 MiniGPT-5.4 Mini publishes an intelligence index of 40 and speed of 170.35 t/s; Grok 4.20 Multi-Agent leaves both fields unspecified. GPT-5.4 Mini's Mini size may limit depth on complex reasoning. No direct comparison is possible without Grok metrics.
Multimodal Workflow
Winner: TieBoth models natively support text, images, and files. GPT-5.4 Mini emphasizes flexible workflows for document-heavy tasks while Grok 4.20 Multi-Agent adds multi-agent coordination. Grok lacks audio or video modalities; GPT-5.4 Mini performance depends on input quality across modalities.
GPT-5.4 Mini
Pros
- +Very large context window
- +Native support for files, images, and text
- +Flexible multimodal workflows
Cons
- –Mini size may reduce depth on complex reasoning
- –Performance depends on input quality across modalities
- –Long contexts can increase latency
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-5.4 Mini vs Grok 4.20 Multi-Agent
Select GPT-5.4 Mini when published speed, intelligence metrics, and single-model document processing matter most. Select Grok 4.20 Multi-Agent when maximum context, lower price, and multi-agent orchestration are priorities. The choice hinges on whether known benchmarks or extreme scale drive the decision.
Frequently asked questions
GPT-5.4 Mini leads where speed and intelligence data are required; Grok 4.20 Multi-Agent leads on context length and price. Neither is universally superior based on the given facts.