GPT-5.4 Nano 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 Nano if you need
- ✓Choose Grok 4.20 Multi-Agent if you need 2M token contexts for massive file and image workflows.
- ✓Choose Grok 4.20 Multi-Agent if you need multi-agent coordination for complex multi-step tasks.
- ✓Choose Grok 4.20 Multi-Agent if you require native handling of extremely long combined text-image-file inputs.
Choose Grok 4.20 Multi-Agent if you need
- ✓Choose GPT-5.4 Nano if you need lower output pricing at $1.25 per million tokens.
- ✓Choose GPT-5.4 Nano if you need documented high output speed of 150.72 tokens per second.
- ✓Choose GPT-5.4 Nano if you need a compact model for 400k context multimodal file and image tasks without coordination overhead.
Verdict
Grok 4.20 Multi-Agent leads for workflows needing 2M-token contexts and native multi-agent coordination across text, images, and files, while GPT-5.4 Nano wins on documented speed, lower price, and simpler long-context multimodal tasks. Grok's unknown intelligence and speed metrics leave performance on complex single tasks unclear compared to GPT-5.4 Nano's measured 38.2 index and 150.72 t/s. Both share identical modality limits with no audio or video support.
GPT-5.4 Nano vs Grok 4.20 Multi-Agent: side by side
| Spec | GPT-5.4 Nano | Grok 4.20 Multi-Agent | Winner |
|---|---|---|---|
| Intelligence | 38.2 | — | Tie |
| Output speed | 151 t/s | — | Tie |
| Output price | $1.25/1M | $2.50/1M | GPT-5.4 Nano |
| Context | 400K | 2000K | Grok 4.20 Multi-Agent |
| Params | — | — | Tie |
| Provider | OpenAI | xAI | Tie |
Detailed analysis
Context Length
Winner: Grok 4.20 Multi-AgentGrok 4.20 Multi-Agent provides a 2M token context window versus GPT-5.4 Nano's 400k tokens. This gives Grok a clear advantage for extremely long multimodal documents and files.
Pricing
Winner: GPT-5.4 NanoGPT-5.4 Nano costs $1.25 per million output tokens while Grok 4.20 Multi-Agent costs $2.5 per million. GPT-5.4 Nano is therefore the lower-cost option on identical usage volumes.
Speed and Latency
Winner: GPT-5.4 NanoGPT-5.4 Nano lists a concrete output speed of 150.72 t/s. Grok 4.20 Multi-Agent has no speed figure published and its multi-agent design may introduce added latency on simple tasks.
Workflow Complexity
Winner: Grok 4.20 Multi-AgentGrok 4.20 Multi-Agent explicitly supports coordinating multiple agents for complex workflows. GPT-5.4 Nano's nano size may limit depth on such tasks despite its multimodal flexibility.
GPT-5.4 Nano
Pros
- +Very large 400k token context
- +Handles file, image, and text inputs
- +Multimodal flexibility
Cons
- –Nano size may limit depth on complex tasks
- –No audio or video modalities
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 Nano vs Grok 4.20 Multi-Agent
Select Grok 4.20 Multi-Agent when maximum context length and multi-agent orchestration are required. Choose GPT-5.4 Nano when lower price, known high speed, and simpler 400k-context multimodal work are priorities. Both models remain comparable on basic text-image-file handling.
Frequently asked questions
Grok 4.20 Multi-Agent is better for massive-context multi-agent workflows while GPT-5.4 Nano is better when speed and price matter most.