Gemini 3.5 Flash vs Step 3.7 Flash
Wins 7 of 8 areas
Coding · Agents · Reasoning · Facts · Images and charts · Math · Following instructions
Wins 0 of 8 areas
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Gemini 3.5 Flash is the stronger all-rounder.Step 3.7 Flash is cheaper.
Scores updated · 23 tests both models report · How we compare
Where each one wins
Tests won in each of the eight areas we test. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
- AgentsCarrying out multi-step tasks on its own40Gemini 3.5 Flash4 of 4 tests
- ReasoningHard problems that need careful thinking30Gemini 3.5 Flash3 of 3 tests
- CodingWriting and fixing software31Gemini 3.5 Flash3 of 4 tests
- FactsGetting facts right instead of making them up20Gemini 3.5 Flash2 of 2 tests
- MathCompetition and research-level math10Gemini 3.5 Flash1 of 2 tests · 1 tie
- Images and chartsUnderstanding pictures, charts and video10Gemini 3.5 Flash1 of 1 test
- Following instructionsDoing exactly what it is asked10Gemini 3.5 Flash1 of 1 test
- Long documentsFinding answers in very long texts00Even0 each · 1 tie
Images and charts, long documents and following instructions rest on a single test each.
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.
Step 3.7 Flash costs 87% less for the same work.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Gemini 3.5 Flash pulls ahead
- Command-line tasks in a real terminalTerminal-Bench 2.1+39.4points ahead
- Long professional tasks in banking, consulting and lawAA ApexAgents+32.3points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+25.6points ahead
Where Step 3.7 Flash pulls ahead
- Long, multi-file coding tasks in real codebasesSWE-bench Pro+1.2points ahead
Every test, side by side
All 23 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGemini 3.5 Flash
- Terminal-Bench 2.1Gemini 3.5 Flash by 39.478.739.3+39.4
- SciCodeGemini 3.5 Flash by 1053.943.9+10
- Terminal-Bench HardGemini 3.5 Flash by 5.340.935.6+5.3
- SWE-bench ProStep 3.7 Flash by 1.255.156.3+1.2
AgentsGemini 3.5 Flash
- AA ApexAgentsGemini 3.5 Flash by 32.347.114.8+32.3
- τ-Bench V3 · BankingGemini 3.5 Flash by 20.232.212+20.2
- GDPValGemini 3.5 Flash by 17.235.218+17.2
- AA IT-Bench SREGemini 3.5 Flash by 1040.330.3+10
ReasoningGemini 3.5 Flash
- Humanity's Last ExamGemini 3.5 Flash by 21.342.721.4+21.3
- GPQA DiamondGemini 3.5 Flash by 11.392.280.9+11.3
- CritPtGemini 3.5 Flash by 10.813.12.3+10.8
FactsGemini 3.5 Flash
- AA-Omniscience · AccuracyGemini 3.5 Flash by 25.651.425.8+25.6
- AA-Omniscience · Non-hallucinationGemini 3.5 Flash by 22.837.815+22.8
Images and chartsGemini 3.5 Flash
- MMMU-ProGemini 3.5 Flash by 984.375.3+9
MathGemini 3.5 Flash
- HMMT Feb. 2026Gemini 3.5 Flash by 7.695.587.9+7.6
- AIME 2026tie9595tie
Following instructionsGemini 3.5 Flash
- IFBenchGemini 3.5 Flash by 976.367.3+9
Other results5 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.
- AA-OmniscienceGemini 3.5 Flash by 58.521.2-37.3+58.5
- Artificial Analysis Coding IndexGemini 3.5 Flash by 30.570.139.6+30.5
- AA IntelligenceGemini 3.5 Flash by 13.132.619.5+13.1
- AA Agentic IndexGemini 3.5 Flash by 5.627.321.7+5.6
- τ²-Bench Telecom (AA run)Step 3.7 Flash by 3.295.398.5+3.2
Questions people ask
Which is better, Gemini 3.5 Flash or Step 3.7 Flash?
Gemini 3.5 Flash wins seven of the eight areas we test: coding, agents, reasoning, facts, images and charts, math and following instructions. Step 3.7 Flash wins none, but costs 87% less. They are level on long documents.
Which is better for coding?
Gemini 3.5 Flash. It wins 3 of the 4 coding tests both models report; Step 3.7 Flash wins 1.
Which is cheaper?
Gemini 3.5 Flash costs $1.50 per million input tokens and $9.00 per million output tokens; Step 3.7 Flash costs $0.20 and $1.15. That makes Step 3.7 Flash about 87% cheaper for the same work.
How do you compare the two?
We use the 23 benchmark tests both models have published scores on. The verdict counts the 18 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 5 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.