Model comparison
Inkling vs Step 1o Turbo 202506
Inkling is the stronger model overall, scoring 44.1 to 39.7 on the Noometry Index.
Last verified . 13 shared benchmarks.
StepFunSummary
- They share 13 benchmarks with published results for both. Inkling scores higher in 6 categories and Step 1o Turbo 202506 in 2 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Inkling leads 55.1 to 36.1.
- Inkling has downloadable open weights; the other is API-only.
Side by side
| Inkling | Step 1o Turbo 202506 | |
|---|---|---|
| Provider | Thinking Machines Lab | StepFun |
| Noometry Index | 44.1 | 39.7 |
| Released | 2026-07-15 | — |
| Weights | Open | Proprietary |
| Context window | 66K | — |
| Max output | 66K | — |
| Input $ / M tokens | $1.87 | — |
| Output $ / M tokens | $4.68 | — |
| Results tracked | 41 | 14 |
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Category by category
Coding Step 1o Turbo 202506 leads
Inkling: 34.5 (#234), Step 1o Turbo 202506: 39.2 (#160)
| Benchmark | Inkling | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Coding | 1464 | 1339 |
| FrontierCode | 14% | — |
| LMArena WebDev | 1413 | — |
| FrontierSWE | 4.1% | — |
| SciCode | 47% | — |
| WeirdML | 32.3% | — |
| ALE-Bench | 946 | — |
Agentic & Tool Use Not comparable
Inkling: 29.6 (#85), Step 1o Turbo 202506: —
| Benchmark | Inkling | Step 1o Turbo 202506 |
|---|---|---|
| APEX-Agents | 33.8% | — |
| τ²-bench Banking | 25% | — |
Reasoning Inkling leads
Inkling: 40.4 (#56), Step 1o Turbo 202506: 26.8 (#129)
| Benchmark | Inkling | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Hard Prompts | 1451 | 1335 |
| ARC-AGI-2 | 36.5% | — |
| SimpleBench | 50% | — |
| ARC-AGI-1 | 79.5% | — |
| CritPt | 5.4% | — |
| Chess Puzzles | 21% | — |
| DTBench | 87.5% | — |
| LMCA | 37.6% | — |
| Epoch Capabilities Index | 148.54 | — |
Math Step 1o Turbo 202506 leads
Inkling: 31.3 (#225), Step 1o Turbo 202506: 36.6 (#164)
| Benchmark | Inkling | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Math | 1479 | 1318 |
| FrontierMath (Tiers 1-3) | 33.3% | — |
| FrontierMath Tier 4 | 4.9% | — |
| OTIS Mock AIME 2024-2025 | 88.9% | — |
| ProofBench | 0% | — |
Knowledge Inkling leads
Inkling: 55.1 (#49), Step 1o Turbo 202506: 36.1 (#176)
| Benchmark | Inkling | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Expert | 1465 | 1308 |
| GPQA Diamond | 88.3% | — |
| SimpleQA Verified | 40.3% | — |
Multimodal Not comparable
Inkling: —, Step 1o Turbo 202506: 36.1 (#80)
| Benchmark | Inkling | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Vision | — | 1186 |
Multilingual Inkling leads
Inkling: 54.0 (#52), Step 1o Turbo 202506: 45.3 (#173)
| Benchmark | Inkling | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Non-English | 1434 | 1313 |
| LMArena Chinese | 1490 | 1380 |
| LMArena German | 1446 | 1314 |
| LMArena Russian | 1429 | 1327 |
| LMArena French | 1458 | — |
| LMArena Japanese | 1429 | — |
| LMArena Korean | 1404 | — |
| LMArena Spanish | 1448 | — |
Instruction Following Inkling leads
Inkling: 75.1 (#71), Step 1o Turbo 202506: 69.2 (#176)
| Benchmark | Inkling | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Instruction Following | 1426 | 1310 |
Long Context Inkling leads
Inkling: 43.8 (#86), Step 1o Turbo 202506: 41.0 (#146)
| Benchmark | Inkling | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Longer Query | 1434 | 1348 |
Writing & Preference Inkling leads
Inkling: 65.2 (#51), Step 1o Turbo 202506: 53.1 (#160)
| Benchmark | Inkling | Step 1o Turbo 202506 |
|---|---|---|
| LMArena Text | 1441 | 1336 |
| LMArena Creative Writing | 1387 | 1307 |
| LMArena Multi-Turn | 1436 | 1340 |
| EQ-Bench Creative Writing | 1611 | — |
| EQ-Bench 4 | 1226 | — |
Frequently asked questions
Is Inkling better than Step 1o Turbo 202506?
Inkling is the stronger model overall, scoring 44.1 to 39.7 on the Noometry Index.
Is Inkling or Step 1o Turbo 202506 better for coding?
Step 1o Turbo 202506 scores higher on coding benchmarks: 39.2 versus 34.5 in the Noometry coding category.
How many benchmarks do Inkling and Step 1o Turbo 202506 share?
13 benchmarks have published results for both models. Inkling has 41 scored results on Noometry and Step 1o Turbo 202506 has 14.