Model comparison
Gemini 1.0 Pro vs Step 3.5 Flash
Step 3.5 Flash is the stronger model overall, scoring 42.3 to 27.3 on the Noometry Index.
Last verified . 16 shared benchmarks.
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StepFunSummary
- They share 16 benchmarks with published results for both. Gemini 1.0 Pro scores higher in 0 categories and Step 3.5 Flash in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Step 3.5 Flash leads 42.6 to 9.3.
- Step 3.5 Flash has downloadable open weights; the other is API-only.
Side by side
| Gemini 1.0 Pro | Step 3.5 Flash | |
|---|---|---|
| Provider | StepFun | |
| Noometry Index | 27.3 | 42.3 |
| Released | 2023-12-13 | 2026-01-29 |
| Weights | Proprietary | Open |
| Context window | — | 256K |
| Max output | — | 256K |
| Input $ / M tokens | — | $0.10 |
| Output $ / M tokens | — | $0.30 |
| Results tracked | 24 | 19 |
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Category by category
Coding Step 3.5 Flash leads
Gemini 1.0 Pro: 32.2 (#275), Step 3.5 Flash: 42.4 (#105)
| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Coding | 1108 | 1436 |
| HumanEval+ | 55.5% | — |
| MBPP+ | 61.4% | — |
Reasoning Step 3.5 Flash leads
Gemini 1.0 Pro: 17.1 (#296), Step 3.5 Flash: 22.2 (#202)
| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Hard Prompts | 1109 | 1411 |
| NYT Connections (extended) | — | 28.4% |
| DTBench | 45.9% | — |
| Epoch Capabilities Index | 117.04 | — |
Math Step 3.5 Flash leads
Gemini 1.0 Pro: 9.3 (#321), Step 3.5 Flash: 42.6 (#84)
| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Math | 1132 | 1408 |
| MathArena Final-Answer Competitions | — | 66.8% |
| OTIS Mock AIME 2024-2025 | 1.1% | — |
| MATH Level 5 | 11.2% | — |
Knowledge Step 3.5 Flash leads
Gemini 1.0 Pro: 15.6 (#291), Step 3.5 Flash: 39.6 (#132)
| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Expert | 1059 | 1421 |
| GPQA Diamond | 34% | — |
| MMLU | 70% | — |
Multilingual Step 3.5 Flash leads
Gemini 1.0 Pro: 33.4 (#252), Step 3.5 Flash: 50.5 (#119)
| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Non-English | 1138 | 1385 |
| LMArena Chinese | 1124 | 1447 |
| LMArena French | 1145 | 1421 |
| LMArena German | 1125 | 1405 |
| LMArena Japanese | 1023 | 1354 |
| LMArena Russian | 1186 | 1385 |
| LMArena Spanish | 1119 | 1419 |
| LMArena Korean | — | 1352 |
Instruction Following Step 3.5 Flash leads
Gemini 1.0 Pro: 57.6 (#267), Step 3.5 Flash: 73.1 (#124)
| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Instruction Following | 1114 | 1385 |
Long Context Step 3.5 Flash leads
Gemini 1.0 Pro: 34.3 (#249), Step 3.5 Flash: 42.8 (#117)
| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Longer Query | 1132 | 1402 |
Writing & Preference Step 3.5 Flash leads
Gemini 1.0 Pro: 36.0 (#264), Step 3.5 Flash: 58.8 (#113)
| Benchmark | Gemini 1.0 Pro | Step 3.5 Flash |
|---|---|---|
| LMArena Text | 1149 | 1403 |
| LMArena Creative Writing | 1131 | 1357 |
| LMArena Multi-Turn | 1139 | 1405 |
Frequently asked questions
Is Gemini 1.0 Pro better than Step 3.5 Flash?
Step 3.5 Flash is the stronger model overall, scoring 42.3 to 27.3 on the Noometry Index.
Is Gemini 1.0 Pro or Step 3.5 Flash better for coding?
Step 3.5 Flash scores higher on coding benchmarks: 42.4 versus 32.2 in the Noometry coding category.
How many benchmarks do Gemini 1.0 Pro and Step 3.5 Flash share?
16 benchmarks have published results for both models. Gemini 1.0 Pro has 24 scored results on Noometry and Step 3.5 Flash has 19.