Which model is better: Gemini 3.8 Flash or Grok 3 Mini?
Gemini 3.8 Flash is 16.7% cheaper for input tokens ($0.25 vs. $0.30 per 1M tokens) and $1.50 vs. $1.20 for output tokens (1.2x cost advantage). In terms of operational performance, Gemini 3.8 Flash delivers lower response latency at 105ms TTFT (45ms faster than Grok 3 Mini) with 210 vs. 160 tok/s throughput. Gemini 3.8 Flash leads coding evaluations at 68.5% SWE-bench Verified vs. 54.0% for Grok 3 Mini and 79.2% vs. 68.0% on GPQA Diamond.
Verified daily via automated API latency tests and official documentation.
Zero-Shot RAG Verified
Verified Performance & Unit Economics Delta (12 Dimensions)
Daily synchronized metrics across token pricing, prompt cache economics, latency, throughput, and 5 capability benchmarks.
Metric / Dimension
Gemini 3.8 Flash
Grok 3 Mini
Net Delta / Advantage
Input Cost / 1M Tokens
$0.25
$0.30
Gemini 3.8 Flash is 1.2x cheaper
Output Cost / 1M Tokens
$1.50
$1.20
Grok 3 Mini (20.0% lower)
Prompt Cache Read / 1M
$0.025
$0.080
Gemini 3.8 Flash is 3.2x cheaper
Prompt Cache Write / 1M
$0.25
$0.30
Gemini 3.8 Flash is 1.2x cheaper
Context Window (Max Output)
1,049k (66k out)
131k (16k out)
Gemini 3.8 Flash (8.0x larger context)
Avg TTFT Response Latency
105ms
150ms
Gemini 3.8 Flash (45ms faster)
Generation Speed (Throughput)
210 tok/s
160 tok/s
Gemini 3.8 Flash (+50 tok/s faster)
SWE-bench Verified (Coding)
68.5%
54%
Gemini 3.8 Flash (+14.5% lead)
GPQA Diamond (PhD STEM)
79.2%
68%
Gemini 3.8 Flash (+11.2% lead)
MMLU-Pro (Multi-Discipline)
87.4%
80%
Gemini 3.8 Flash (+7.4% lead)
MATH-500 (Quantitative Logic)
95.1%
87%
Gemini 3.8 Flash (+8.1% lead)
Inference Value Score (IVR)
74 / 100
69.2 / 100
Gemini 3.8 Flash (+4.8 pts)
Interactive Monthly Token Economics & ROI Forecaster
Model production workloads across prompt, completion, and cached context tokens, or switch models on the fly.
Choose Gemini 3.8 Flash (Google) for high-throughput agentic workflows, real-time multimodal RAG, live search grounding, and production code generation at flash unit economics — offering a 1,048k context window, 105ms TTFT, and $0.25/1M input pricing ($0.025/1M cached reads).
Choose Grok 3 Mini (xAI) for high-speed reasoning model providing rapid answers and code generation with chain-of-thought capabilities at edge pricing — offering a 131k context window, 150ms TTFT, and $0.30/1M input pricing ($0.080/1M cached reads).
Which is cheaper: Gemini 3.8 Flash or Grok 3 Mini?
Gemini 3.8 Flash is cheaper at $0.25/1M input tokens ($1.50/1M output) compared to $0.30/1M input ($1.20/1M output) for Grok 3 Mini.
Which model has lower TTFT latency and higher tok/s throughput: Gemini 3.8 Flash or Grok 3 Mini?
Gemini 3.8 Flash delivers faster first-token latency at 105ms TTFT (210 tok/s throughput) compared to 150ms TTFT (160 tok/s) for Grok 3 Mini.
How do Gemini 3.8 Flash and Grok 3 Mini compare on SWE-bench coding and GPQA Diamond reasoning?
On SWE-bench Verified software engineering, Gemini 3.8 Flash scores 68.5% versus 54% for Grok 3 Mini. On GPQA Diamond graduate-level STEM reasoning, Gemini 3.8 Flash scores 79.2% versus 68% for Grok 3 Mini (and 95.1% vs 87% on MATH-500).
When should you choose Gemini 3.8 Flash?
Choose Gemini 3.8 Flash (Google) for high-throughput agentic workflows, real-time multimodal RAG, live search grounding, and production code generation at flash unit economics — offering a 1,048k context window, 105ms TTFT, and $0.25/1M input pricing ($0.025/1M cached reads).
When should you choose Grok 3 Mini?
Choose Grok 3 Mini (xAI) for high-speed reasoning model providing rapid answers and code generation with chain-of-thought capabilities at edge pricing — offering a 131k context window, 150ms TTFT, and $0.30/1M input pricing ($0.080/1M cached reads).
