Gemini 2.0 Flash (Reasoning) vs Gemini 2.5 Flash
Wins 0 of 3 areas
—
Wins 3 of 3 areas
Coding · Reasoning · Images and charts
Gemini 2.5 Flash is the stronger all-rounder.
Scores updated · 15 tests both models report · How we compare
Where each one wins
Tests won in each of the three areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
Coding rests on a single test.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Gemini 2.5 Flash pulls ahead
- Fixes real GitHub issues in Python projectsSWE-bench Verified+46.9points ahead
- Common-sense trick questionsSimpleBench+10.5points ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+4.8points ahead
Where Gemini 2.0 Flash (Reasoning) pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 15 tests both models report. The winning score is in its model's colour; marks a score checked independently.
ReasoningGemini 2.5 Flash
- SimpleBenchGemini 2.5 Flash by 10.530.741.2+10.5
- GPQA DiamondGemini 2.5 Flash by 4.874.279+4.8
Images and chartsGemini 2.5 Flash
- LMArena · VisionGemini 2.5 Flash by 77 rating points11581235+77 rating
- MMMUGemini 2.5 Flash by 4.375.479.7+4.3
Other results10 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- HMMT Feb. 2025Gemini 2.5 Flash by 50.913.364.2+50.9
- AIME 2025Gemini 2.5 Flash by 44.527.572+44.5
- LiveCodeBenchGemini 2.5 Flash by 41.135.176.2+41.1
- MRCRGemini 2.0 Flash (Reasoning) by 37.269.232+37.2
- HarmBenchGemini 2.0 Flash (Reasoning) by 3.666.262.6+3.6
- XSTestGemini 2.5 Flash by 3.595.398.8+3.5
- AIR-Bench 2024Gemini 2.5 Flash by 2.566.268.7+2.5
- bbqGemini 2.5 Flash by 2.395.497.7+2.3
- anthropic_red_teamtie99.498.8tie
- simple_safety_teststie98.598tie
Questions people ask
Which is better, Gemini 2.0 Flash (Reasoning) or Gemini 2.5 Flash?
Gemini 2.5 Flash wins all three areas where both have results: coding, reasoning and images and charts. Gemini 2.0 Flash (Reasoning) wins none.
Which is better for coding?
Gemini 2.5 Flash. It wins the one coding test both models report.
How do you compare the two?
We use the 15 benchmark tests both models have published scores on. The verdict counts the 5 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 10 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.