💰 Unit Cost Winner Grok 3 Mini $0.30/1M in · $1.20/1M out
⚡ Latency & Speed Winner Grok 3 Mini 150ms TTFT · 160 tok/s
💻 Coding (SWE) Winner Gemini 2.5 Pro 63.8% SWE-bench · 89.8% HumanEval
🧠 STEM Reasoning Winner Gemini 2.5 Pro 74% GPQA · 95% MATH-500

Which model is better: Gemini 2.5 Pro or Grok 3 Mini?

Grok 3 Mini is 76.0% cheaper for input tokens ($0.30 vs. $1.25 per 1M tokens) and $1.20 vs. $10.00 for output tokens (4.2x cost advantage). In terms of operational performance, Grok 3 Mini delivers lower response latency at 150ms TTFT (550ms faster than Gemini 2.5 Pro) with 160 vs. 80 tok/s throughput. Gemini 2.5 Pro leads coding evaluations at 63.8% SWE-bench Verified vs. 54.0% for Grok 3 Mini and 74.0% vs. 68.0% on GPQA Diamond.
Verified daily via automated API latency tests and official documentation.

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 Pro Grok 3 Mini Net Delta / Advantage
Input Cost / 1M Tokens $1.25 $0.30 Grok 3 Mini is 4.2x cheaper
Output Cost / 1M Tokens $10.00 $1.20 Grok 3 Mini (88.0% lower)
Prompt Cache Read / 1M $0.313 $0.080 Grok 3 Mini is 3.9x cheaper
Prompt Cache Write / 1M $1.25 $0.30 Grok 3 Mini is 4.2x cheaper
Context Window (Max Output) 1,024k (66k out) 131k (16k out) Gemini 2.5 Pro (7.8x larger context)
Avg TTFT Response Latency 700ms 150ms Grok 3 Mini (550ms faster)
Generation Speed (Throughput) 80 tok/s 160 tok/s Grok 3 Mini (+80 tok/s faster)
SWE-bench Verified (Coding) 63.8% 54% Gemini 2.5 Pro (+9.8% lead)
GPQA Diamond (PhD STEM) 74% 68% Gemini 2.5 Pro (+6.0% lead)
MMLU-Pro (Multi-Discipline) 85.2% 80% Gemini 2.5 Pro (+5.2% lead)
MATH-500 (Quantitative Logic) 95% 87% Gemini 2.5 Pro (+8.0% lead)
Inference Value Score (IVR) 56.8 / 100 69.2 / 100 Grok 3 Mini (+12.4 pts)

Interactive Monthly Token Economics & ROI Forecaster

Model production workloads across prompt, completion, and cached context tokens, or switch models on the fly.

25.0M Tokens
500K 50M 250M 500M+
5.0M Tokens
100K 25M 75M 150M+
50% Cached
0% (Uncached) 25% 50% (Typical Agent) 95% Max

Estimated Monthly Spend

Gemini 2.5 Pro $69.53

$1.25/1M in · $10.00/1M out

Prompt Cache: $0.313/1M read · $1.25/1M write

Grok 3 Mini $10.75

$0.30/1M in · $1.20/1M out

Prompt Cache: $0.080/1M read · $0.30/1M write

Projected Monthly Cost Reduction
$58.78 / mo
(84.5% lower cost with Grok 3 Mini)
Open Full Matchup Analysis →
A

When to Choose Gemini 2.5 Pro

Choose Gemini 2.5 Pro (Google) for long-context document and video analysis, large codebase ingestion, and multimodal reasoning — offering a 1,024k context window, 700ms TTFT, and $1.25/1M input pricing ($0.312/1M cached reads).

B

When to 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).

Related Questions & Decision Factors

Which is cheaper: Gemini 2.5 Pro or Grok 3 Mini?

Grok 3 Mini is cheaper at $0.30/1M input tokens ($1.20/1M output) compared to $1.25/1M input ($10.00/1M output) for Gemini 2.5 Pro.

Which model has lower TTFT latency and higher tok/s throughput: Gemini 2.5 Pro or Grok 3 Mini?

Grok 3 Mini delivers faster first-token latency at 150ms TTFT (160 tok/s throughput) compared to 700ms TTFT (80 tok/s) for Gemini 2.5 Pro.

How do Gemini 2.5 Pro and Grok 3 Mini compare on SWE-bench coding and GPQA Diamond reasoning?

On SWE-bench Verified software engineering, Gemini 2.5 Pro scores 63.8% versus 54% for Grok 3 Mini. On GPQA Diamond graduate-level STEM reasoning, Gemini 2.5 Pro scores 74% versus 68% for Grok 3 Mini (and 95% vs 87% on MATH-500).

When should you choose Gemini 2.5 Pro?

Choose Gemini 2.5 Pro (Google) for long-context document and video analysis, large codebase ingestion, and multimodal reasoning — offering a 1,024k context window, 700ms TTFT, and $1.25/1M input pricing ($0.312/1M 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).

Explore High-Priority Related Model Matchups