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Gemini 3.1 Flash-Lite

VS
xAI

Grok 4.3

✍️ Analysis by:the whichllmmodel Editorial Team|📅 Updated: June 2026

Decision Recommendation

⚖️ Editorial Verdict: In our analysis, Grok 4.3 is the premium intelligence choice, scoring 0.0% higher on coding benchmarks. However, this accuracy premium comes with a cost overhead: Gemini 3.1 Flash-Lite is 2.8x cheaper to run. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, Gemini 3.1 Flash-Lite offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of Grok 4.3 fully justifies the cost.

Model Specs

Gemini 3.1 Flash-Lite

Benchmarks & Scores

Coding (swe-bench-pro)
N/A
Reasoning (gpqa-diamond)
86.9%

Cost & Performance

Cost (per 1M tokens)2.8x cheaper
$0.56Input: $0.25 | Output: $1.50
Speed
205 tps
Context Window
1M tokens
Model Specs

Grok 4.3

Benchmarks & Scores

Coding (swe-bench-pro)
N/A
Reasoning (gpqa-diamond)Winner (+3.2%)
90.1%

Cost & Performance

Cost (per 1M tokens)
$1.56Input: $1.25 | Output: $2.50
Speed
209 tps
Context Window
1M tokens
Read our data collection methodology

Frequently Asked Questions

Gemini 3.1 Flash-Lite is cheaper than Grok 4.3. Gemini 3.1 Flash-Lite has a blended cost of $0.56/1M tokens, which is about 2.8x cheaper than Grok 4.3 at $1.56/1M tokens.

Grok 4.3 is faster than Gemini 3.1 Flash-Lite. Grok 4.3 generates 209 tokens per second (tps) compared to Gemini 3.1 Flash-Lite which generates 205 tokens per second.

Coding benchmark scores are not currently recorded for these models.

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