Model comparison
Step 3.7 Flash vs Yi-34B
Step 3.7 Flash is the stronger model overall, scoring 36.5 to 27.4 on the Noometry Index.
Last verified . 0 shared benchmarks.
StepFunSummary
- The widest gap is in math, where Step 3.7 Flash leads 40.9 to 19.8.
Side by side
| Step 3.7 Flash | Yi-34B | |
|---|---|---|
| Provider | StepFun | 01.AI |
| Noometry Index | 36.5 | 27.4 |
| Released | 2026-05-29 | 2023-11-02 |
| Weights | Open | Open |
| Context window | 256K | — |
| Max output | 256K | — |
| Input $ / M tokens | $0.18 | — |
| Output $ / M tokens | $1.11 | — |
| Results tracked | 5 | 23 |
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Category by category
Coding Step 3.7 Flash leads
Step 3.7 Flash: 39.4 (#147), Yi-34B: 31.8 (#269)
| Benchmark | Step 3.7 Flash | Yi-34B |
|---|---|---|
| SciCode | 40% | — |
| LMArena Coding | — | 1112 |
| ALE-Bench | 694.12 | — |
Reasoning Too close to call
Step 3.7 Flash: 20.9 (#211), Yi-34B: 20.3 (#222)
| Benchmark | Step 3.7 Flash | Yi-34B |
|---|---|---|
| NYT Connections (extended) | 39.7% | — |
| CritPt | 2.3% | — |
| LMArena Hard Prompts | — | 1104 |
| BIG-Bench Hard | — | 71.7% |
| Epoch Capabilities Index | — | 117.28 |
Math Step 3.7 Flash leads
Step 3.7 Flash: 40.9 (#74), Yi-34B: 19.8 (#277)
| Benchmark | Step 3.7 Flash | Yi-34B |
|---|---|---|
| MathArena Final-Answer Competitions | 68.5% | — |
| LMArena Math | — | 1114 |
| MATH Level 5 | — | 5.1% |
| GSM8K | — | 76% |
Knowledge Not comparable
Step 3.7 Flash: —, Yi-34B: 7.5 (#304)
| Benchmark | Step 3.7 Flash | Yi-34B |
|---|---|---|
| GPQA Diamond | — | 14.7% |
| LMArena Expert | — | 1061 |
| MMLU | — | 76.3% |
Multilingual Not comparable
Step 3.7 Flash: —, Yi-34B: 29.9 (#259)
| Benchmark | Step 3.7 Flash | Yi-34B |
|---|---|---|
| LMArena Non-English | — | 1079 |
| LMArena Chinese | — | 1175 |
| LMArena French | — | 1080 |
| LMArena German | — | 1042 |
| LMArena Japanese | — | 993 |
| LMArena Korean | — | 959 |
| LMArena Russian | — | 1050 |
| LMArena Spanish | — | 1070 |
Instruction Following Not comparable
Step 3.7 Flash: —, Yi-34B: 56.4 (#269)
| Benchmark | Step 3.7 Flash | Yi-34B |
|---|---|---|
| LMArena Instruction Following | — | 1091 |
Long Context Not comparable
Step 3.7 Flash: —, Yi-34B: 33.2 (#259)
| Benchmark | Step 3.7 Flash | Yi-34B |
|---|---|---|
| LMArena Longer Query | — | 1094 |
Writing & Preference Not comparable
Step 3.7 Flash: —, Yi-34B: 34.3 (#268)
| Benchmark | Step 3.7 Flash | Yi-34B |
|---|---|---|
| LMArena Text | — | 1129 |
| LMArena Creative Writing | — | 1108 |
| LMArena Multi-Turn | — | 1113 |
Frequently asked questions
Is Step 3.7 Flash better than Yi-34B?
Step 3.7 Flash is the stronger model overall, scoring 36.5 to 27.4 on the Noometry Index.
Is Step 3.7 Flash or Yi-34B better for coding?
Step 3.7 Flash scores higher on coding benchmarks: 39.4 versus 31.8 in the Noometry coding category.
How many benchmarks do Step 3.7 Flash and Yi-34B share?
0 benchmarks have published results for both models. Step 3.7 Flash has 5 scored results on Noometry and Yi-34B has 23.