Which model is better: Gemini 2.5 Flash or Grok 3 Mini?
Gemini 2.5 Flash and Grok 3 Mini share identical input pricing at $0.30 per 1M tokens ($2.50 vs. $1.20 output). In terms of operational performance, Gemini 2.5 Flash delivers lower response latency at 110ms TTFT (40ms faster than Grok 3 Mini) with 180 vs. 160 tok/s throughput. Gemini 2.5 Flash leads coding evaluations at 58.0% SWE-bench Verified vs. 54.0% for Grok 3 Mini and 70.5% 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 2.5 Flash
Grok 3 Mini
Net Delta / Advantage
Input Cost / 1M Tokens
$0.30
$0.30
Identical Pricing
Output Cost / 1M Tokens
$2.50
$1.20
Grok 3 Mini (52.0% lower)
Prompt Cache Read / 1M
$0.030
$0.080
Gemini 2.5 Flash is 2.7x cheaper
Prompt Cache Write / 1M
$0.30
$0.30
Identical Cache Write Pricing
Context Window (Max Output)
1,049k (66k out)
131k (16k out)
Gemini 2.5 Flash (8.0x larger context)
Avg TTFT Response Latency
110ms
150ms
Gemini 2.5 Flash (40ms faster)
Generation Speed (Throughput)
180 tok/s
160 tok/s
Gemini 2.5 Flash (+20 tok/s faster)
SWE-bench Verified (Coding)
58%
54%
Gemini 2.5 Flash (+4.0% lead)
GPQA Diamond (PhD STEM)
70.5%
68%
Gemini 2.5 Flash (+2.5% lead)
MMLU-Pro (Multi-Discipline)
82%
80%
Gemini 2.5 Flash (+2.0% lead)
MATH-500 (Quantitative Logic)
89%
87%
Gemini 2.5 Flash (+2.0% lead)
Inference Value Score (IVR)
66.6 / 100
69.2 / 100
Grok 3 Mini (+2.6 pts)
Interactive Monthly Token Economics & ROI Forecaster
Model production workloads across prompt, completion, and cached context tokens, or switch models on the fly.
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 2.5 Flash or Grok 3 Mini?
Both Gemini 2.5 Flash and Grok 3 Mini share identical input pricing at $0.30/1M tokens.
Which model has lower TTFT latency and higher tok/s throughput: Gemini 2.5 Flash or Grok 3 Mini?
Gemini 2.5 Flash delivers faster first-token latency at 110ms TTFT (180 tok/s throughput) compared to 150ms TTFT (160 tok/s) for Grok 3 Mini.
How do Gemini 2.5 Flash and Grok 3 Mini compare on SWE-bench coding and GPQA Diamond reasoning?
On SWE-bench Verified software engineering, Gemini 2.5 Flash scores 58% versus 54% for Grok 3 Mini. On GPQA Diamond graduate-level STEM reasoning, Gemini 2.5 Flash scores 70.5% versus 68% for Grok 3 Mini (and 89% vs 87% on MATH-500).
When should you choose Gemini 2.5 Flash?
Choose Gemini 2.5 Flash (Google) for cost-efficient 1M-context summarization, multimodal extraction, and interactive assistants — offering a 1,048k context window, 110ms TTFT, and $0.30/1M input pricing ($0.030/1M 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).
