Gemini 3.1 Flash Lite 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 Gemini 3.1 Flash Lite if you need
- ✓Choose Gemini 3.1 Flash Lite if you need output at 310.24 tokens per second with low latency.
- ✓Choose Gemini 3.1 Flash Lite if you need video alongside text and image inputs at $1.5 per million tokens.
- ✓Choose Gemini 3.1 Flash Lite if you need a 1M-token context window in a lightweight, resource-efficient package.
Choose Grok 4.20 Multi-Agent if you need
- ✓Choose Grok 4.20 Multi-Agent if you need a 2M-token context window for massive documents.
- ✓Choose Grok 4.20 Multi-Agent if you need native multi-agent coordination for workflow tasks.
- ✓Choose Grok 4.20 Multi-Agent if you need to process text, images, and files without video requirements.
Verdict
Gemini 3.1 Flash Lite leads on speed, cost, and video support while Grok 4.20 Multi-Agent leads on maximum context length and multi-agent coordination. Gemini's known 310.24 t/s speed and $1.5/M price give it clear efficiency advantages, whereas Grok's 2M context and native multi-agent design suit complex workflows. Neither has a published intelligence score comparison, leaving peak reasoning depth unresolved from the given data.
Gemini 3.1 Flash Lite vs Grok 4.20 Multi-Agent: side by side
| Spec | Gemini 3.1 Flash Lite | Grok 4.20 Multi-Agent | Winner |
|---|---|---|---|
| Intelligence | 33.5 | — | Tie |
| Output speed | 310 t/s | — | Tie |
| Output price | $1.50/1M | $6.00/1M | Gemini 3.1 Flash Lite |
| Context | 1049K | 2000K | Grok 4.20 Multi-Agent |
| Params | — | — | Tie |
| Type | Proprietary | Proprietary | Tie |
| Provider | xAI | Tie |
Detailed analysis
Speed
Winner: Gemini 3.1 Flash LiteGemini 3.1 Flash Lite reports a concrete output speed of 310.24 tokens per second. Grok 4.20 Multi-Agent lists no speed figure, and its multi-agent design is noted to potentially add latency. This makes Gemini the only model with quantified high-speed performance.
Pricing
Winner: Gemini 3.1 Flash LiteGemini 3.1 Flash Lite costs $1.5 per million tokens. Grok 4.20 Multi-Agent costs $6 per million tokens. The fourfold price difference favors Gemini for high-volume use.
Context Length
Winner: Grok 4.20 Multi-AgentGrok 4.20 Multi-Agent supports a 2M-token context. Gemini 3.1 Flash Lite supports a 1,048,576-token context. Grok therefore handles longer inputs when that is the primary constraint.
Modalities
Winner: Gemini 3.1 Flash LiteGemini 3.1 Flash Lite explicitly supports text, image, and video. Grok 4.20 Multi-Agent supports text, images, and files but excludes audio and video. Gemini therefore covers a broader multimodal range.
Gemini 3.1 Flash Lite
Pros
- +High speed and low latency
- +Handles very large context windows
- +Broad modality support in a lightweight package
- +Resource-efficient inference
Cons
- –Reduced depth on highly complex reasoning tasks
- –Lite design trades peak capability for speed
- –May require more guidance on nuanced or creative 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: Gemini 3.1 Flash Lite vs Grok 4.20 Multi-Agent
Select Gemini 3.1 Flash Lite when speed, price, and video support matter most. Select Grok 4.20 Multi-Agent when the longest context window or multi-agent orchestration is required. The data provide no basis for declaring an overall intelligence winner.
Frequently asked questions
Gemini 3.1 Flash Lite is the only model with a published speed of 310.24 tokens per second; Grok 4.20 Multi-Agent provides no speed metric.