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Google

Gemini 2.5 Flash

VS
Google

Gemini 2.5 Pro

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

Decision Recommendation

⚖️ Editorial Verdict: In our analysis, Gemini 2.5 Pro is the premium intelligence choice, scoring 0.0% higher on coding benchmarks. However, this accuracy premium comes with a cost overhead: Gemini 2.5 Flash is 4.0x cheaper to run and delivers 1.9x faster throughput. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, Gemini 2.5 Flash offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of Gemini 2.5 Pro fully justifies the cost.

Model Specs

Gemini 2.5 Flash

Benchmarks & Scores

Coding (swe-bench-pro)
N/A
Reasoning (gpqa-diamond)
68.3%

Cost & Performance

Cost (per 1M tokens)4.0x cheaper
$0.85Input: $0.30 | Output: $2.50
Speed1.9x faster
221 tps
Context Window
1M tokens
Model Specs

Gemini 2.5 Pro

Benchmarks & Scores

Coding (swe-bench-pro)
N/A
Reasoning (gpqa-diamond)Winner (+16.1%)
84.4%

Cost & Performance

Cost (per 1M tokens)
$3.44Input: $1.25 | Output: $10.00
Speed
117 tps
Context Window
1M tokens
Read our data collection methodology

Frequently Asked Questions

Gemini 2.5 Flash is cheaper than Gemini 2.5 Pro. Gemini 2.5 Flash has a blended cost of $0.85/1M tokens, which is about 4.0x cheaper than Gemini 2.5 Pro at $3.44/1M tokens.

Gemini 2.5 Flash is faster than Gemini 2.5 Pro. Gemini 2.5 Flash generates 221 tokens per second (tps) compared to Gemini 2.5 Pro which generates 117 tokens per second.

Coding benchmark scores are not currently recorded for these models.

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