Step 3.7 Flash vs UnslopNemo 12B
UnslopNemo 12B costs 2.9x less per output token than Step 3.7 Flash ($0.40 vs $1.15 per million). Updated October 23, 2026; no benchmark has tested both models yet.
- Coding
- No data
- Overall
- No data
- Output $/M
- $1.15
- Coding
- No data
- Overall
- No data
- Output $/M
- $0.40
Step 3.7 Flash or UnslopNemo 12B: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Compare them on price, context and the boards below.
No benchmark has tested both yet. Step 3.7 Flash has results on AA Coding Index, SciCode and Terminal-Bench Hard (Artificial Analysis run); UnslopNemo 12B has none yet. Compare them on price and context instead.
Which one for your work
Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Neither has a coding score yet.
One side not measured
Intelligence
AA Intelligence Index
No call
Only Step 3.7 Flash has a AA Intelligence Index result, 19.5.
Directional only
Web design
Design Arena: websites
No call
Only Step 3.7 Flash has a Design Arena: websites result, 1196.
Directional only
Long documents
Listed context window
UnslopNemo 12B
UnslopNemo 12B takes 1.02M tokens against 262K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
UnslopNemo 12B
Step 3.7 Flash $0.0008, UnslopNemo 12B $0.0006 per turn.
List prices
At a glance
- Coding index
- Step 3.7 Flash not benchmarked, UnslopNemo 12B not benchmarked.
- Widest category
- None yet: no category has been tested on both models.
- Widest single gap
- None yet: no benchmark has tested both models.
- Output price
- Step 3.7 Flash $1.15 against UnslopNemo 12B $0.40 per million output tokens, 2.9x apart.
- Context window
- Step 3.7 Flash takes 262K tokens, UnslopNemo 12B 1.02M.
Benchmark by benchmark
Every board either model has a result on, a category to a fold; bars are each result on a 0 to 100 scale. Only one model is measured on each, so no row names a leader.
CodingDirectional onlySix of these boards feed the Vibe Coding Index4 boards measured
| Benchmark | Step 3.7 Flash | UnslopNemo 12B | Leader |
|---|---|---|---|
| AA Coding Index | 39.6 | Not measured | Only Step 3.7 Flash measured |
| SciCode | 43.9% | Not measured | Only Step 3.7 Flash measured |
| Terminal-Bench Hard (Artificial Analysis run) | 35.6% | Not measured | Only Step 3.7 Flash measured |
| ALE-Bench | 694.1 | Not measured | Only Step 3.7 Flash measured |
| Neither model has a result on the other 39 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
| Benchmark | Step 3.7 Flash | UnslopNemo 12B | Leader |
|---|---|---|---|
| AA Intelligence Index | 19.5 | Not measured | Only Step 3.7 Flash measured |
| Neither model has a result on the other 1 board here | |||
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
| Benchmark | Step 3.7 Flash | UnslopNemo 12B | Leader |
|---|---|---|---|
| τ²-Bench Telecom | 98.5% | Not measured | Only Step 3.7 Flash measured |
| Neither model has a result on the other 41 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
| Benchmark | Step 3.7 Flash | UnslopNemo 12B | Leader |
|---|---|---|---|
| GPQA Diamond (Artificial Analysis run) | 80.9% | Not measured | Only Step 3.7 Flash measured |
| Humanity's Last Exam (Artificial Analysis run) | 21.4% | Not measured | Only Step 3.7 Flash measured |
| Neither model has a result on the other 21 boards here | |||
MathDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
| Benchmark | Step 3.7 Flash | UnslopNemo 12B | Leader |
|---|---|---|---|
| MathArena | 19.1% | Not measured | Only Step 3.7 Flash measured |
| Neither model has a result on the other 13 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards measured
| Benchmark | Step 3.7 Flash | UnslopNemo 12B | Leader |
|---|---|---|---|
| Design Arena: websites | 1196 | Not measured | Only Step 3.7 Flash measured |
| Design Arena: UI components | 1177 | Not measured | Only Step 3.7 Flash measured |
| Design Arena: game dev | 1158 | Not measured | Only Step 3.7 Flash measured |
| Design Arena: data viz | 1173 | Not measured | Only Step 3.7 Flash measured |
| Design Arena: 3D | 1130 | Not measured | Only Step 3.7 Flash measured |
| Design Arena: all code categories | 1181 | Not measured | Only Step 3.7 Flash measured |
| Design Arena: SVG | 1084 | Not measured | Only Step 3.7 Flash measured |
| Design Arena: ASCII art | 1152 | Not measured | Only Step 3.7 Flash measured |
| Neither model has a result on the other 1 board here | |||
GeneralDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
| Benchmark | Step 3.7 Flash | UnslopNemo 12B | Leader |
|---|---|---|---|
| IFBench | 67.3% | Not measured | Only Step 3.7 Flash measured |
| Long context reasoning (AA-LCR) | 73.7% | Not measured | Only Step 3.7 Flash measured |
| Neither model has a result on the other 46 boards here | |||
What each workload costs
Three fixed token mixes at each model's listed price, so per-token rates become a bill.
Chat turn
1K input + 500 output tokens
UnslopNemo 12B costs less
Repository review
50K input + 3K output tokens
Step 3.7 Flash costs less
Agent loop
200K input + 10K output tokens
Step 3.7 Flash costs less
Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.
Specification differences
The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.
| Specification | StepFun Step 3.7 Flash | TheDrummer UnslopNemo 12B |
|---|---|---|
| Maker | StepFun | TheDrummer |
| Weights | Open weights | Open weights |
| Released | May 28, 2026 | November 8, 2024 |
| Context window | 262K | 1.02M |
| Input $/Mtok | $0.20 | $0.40 |
| Output $/Mtok | $1.15 | $0.40 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 0 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Step 3.7 Flash better than UnslopNemo 12B for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Compare them on price, context and the boards below.
Which is cheaper, Step 3.7 Flash or UnslopNemo 12B?
Step 3.7 Flash costs $0.20 per million input tokens and $1.15 per million output tokens; UnslopNemo 12B costs $0.40 and $0.40. Cost per solved task is known for neither of them.
Which has the bigger context window, Step 3.7 Flash or UnslopNemo 12B?
UnslopNemo 12B, with 1.02M tokens against 262K.
Has any benchmark tested both Step 3.7 Flash and UnslopNemo 12B?
No benchmark has tested both yet. Step 3.7 Flash has results on AA Coding Index, SciCode and Terminal-Bench Hard (Artificial Analysis run); UnslopNemo 12B has none yet. Compare them on price and context instead. Data as of October 23, 2026.