Grok 4.20 Multi-Agent vs Grok 4.3
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 Grok 4.20 Multi-Agent if you need
- ✓Choose Grok 4.3 if you need a known intelligence index of 43.9 and proven complex multi-step reasoning.
- ✓Choose Grok 4.3 if you need lower price at $2.5 per million tokens and output speed of 134.99 t/s.
- ✓Choose Grok 4.3 if you need integrated real-time tool access with a helpful, direct style.
- ✓Choose Grok 4.3 if you need a 1M context window for document-level tasks without multi-agent overhead.
Choose Grok 4.3 if you need
- ✓Choose Grok 4.20 Multi-Agent if you need a 2M-token context for massive document or file collections.
- ✓Choose Grok 4.20 Multi-Agent if you need native coordination of multiple agents across text, images, and files.
- ✓Choose Grok 4.20 Multi-Agent if your workflows require handling extremely long contexts with multi-agent orchestration.
- ✓Choose Grok 4.20 Multi-Agent if you prioritize native multi-modal file handling over per-token cost.
Verdict
Grok 4.3 leads on measurable intelligence (43.9), speed (134.99 t/s), and price ($2.5/M) with strong multi-step reasoning and real-time tools, while Grok 4.20 Multi-Agent leads on raw context length (2M vs 1M) and native multi-agent coordination for complex workflows. 4.3 offers better value for most document and reasoning tasks; 4.20 is positioned for extremely long multi-file, multi-agent scenarios despite higher cost and unknown benchmarks.
Grok 4.20 Multi-Agent vs Grok 4.3: side by side
| Spec | Grok 4.20 Multi-Agent | Grok 4.3 | Winner |
|---|---|---|---|
| Intelligence | — | 43.9 | Tie |
| Output speed | — | 135 t/s | Tie |
| Output price | $6.00/1M | $2.50/1M | Grok 4.3 |
| Context | 2000K | 1000K | Grok 4.20 Multi-Agent |
| Params | — | — | Tie |
| Type | Proprietary | Proprietary | Tie |
| Provider | xAI | xAI | Tie |
Detailed analysis
Intelligence & Reasoning
Winner: Grok 4.3Grok 4.3 reports a concrete intelligence_index of 43.9 and lists explicit strengths in complex multi-step reasoning. Grok 4.20 Multi-Agent provides no intelligence score, so direct comparison is not possible from the given data.
Pricing
Winner: Grok 4.3Grok 4.3 is priced at $2.5 per million tokens versus $6 per million for Grok 4.20 Multi-Agent. The 2.4× price difference favors 4.3 for any workload where context length under 1M is sufficient.
Context & Workflow
Winner: Grok 4.20 Multi-AgentGrok 4.20 Multi-Agent doubles the context window to 2M tokens and adds explicit multi-agent coordination for workflows. Grok 4.3 offers a 1M context with integrated real-time tools but no multi-agent orchestration.
Speed & Latency
Winner: Grok 4.3Grok 4.3 lists a concrete output speed of 134.99 t/s. Grok 4.20 Multi-Agent notes that multi-agent setups may add latency and coordination overhead, with no speed figure provided.
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
Grok 4.3
Pros
- +Strong performance on complex multi-step reasoning
- +Large context window for document-level tasks
- +Helpful and direct response style
- +Integrated real-time tool access
Cons
- –Vision capabilities less mature than specialized models
- –Occasional over-refusal on edge-case queries
- –High computational cost for maximum context usage
Summary: Grok 4.20 Multi-Agent vs Grok 4.3
Select Grok 4.3 for most multimodal reasoning and document tasks where cost, speed, and known performance matter. Choose Grok 4.20 Multi-Agent only when 2M context and multi-agent coordination are required despite the higher price and added latency. The data show 4.3 as the stronger default option for the majority of users.
Frequently asked questions
Grok 4.3 is better for most users due to its documented intelligence score, lower price, and faster output; Grok 4.20 Multi-Agent is better only for 2M-context multi-agent workflows.