Model comparison
Inkling-Small vs Muse Spark 1.2
Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 46.5 on the Noometry Index. Inkling-Small costs 3.1× less per token, which makes it the better buy when Muse Spark 1.2's lead doesn't matter for your workload.
Last verified . 22 shared benchmarks.
MetaSummary
- They share 22 benchmarks with published results for both. Inkling-Small scores higher in 0 categories and Muse Spark 1.2 in 9 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Muse Spark 1.2 leads 72.3 to 59.6.
- The biggest single-benchmark swing is SimpleQA Verified: 19.1% for Inkling-Small and 60.3% for Muse Spark 1.2.
- Inkling-Small is cheaper at $0.45 / $1.20 per million input/output tokens, against $1.25 / $4.25 for Muse Spark 1.2.
- Muse Spark 1.2 accepts more context: 1.05M tokens versus 524K.
- Inkling-Small has downloadable open weights; the other is API-only.
Side by side
| Inkling-Small | Muse Spark 1.2 | |
|---|---|---|
| Provider | Thinking Machines Lab | Meta |
| Noometry Index | 46.5 | 50.3 |
| Released | 2026-07-15 | 2026-08-05 |
| Weights | Open | Proprietary |
| Context window | 524K | 1.05M |
| Max output | 1.05M | 131K |
| Input $ / M tokens | $0.45 | $1.25 |
| Output $ / M tokens | $1.20 | $4.25 |
| Results tracked | 33 | 31 |
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Category by category
Coding Muse Spark 1.2 leads
Inkling-Small: 43.6 (#85), Muse Spark 1.2: 49.2 (#51)
| Benchmark | Inkling-Small | Muse Spark 1.2 |
|---|---|---|
| LMArena WebDev | 1409 | 1533 |
| SciCode | 48.7% | 56.4% |
| LMArena Coding | 1451 | 1495 |
| DeepSWE | — | 54.9% |
| FrontierSWE | — | 12% |
| WeirdML | — | 60.3% |
Agentic & Tool Use Not comparable
Inkling-Small: —, Muse Spark 1.2: 29.4 (#87)
| Benchmark | Inkling-Small | Muse Spark 1.2 |
|---|---|---|
| APEX-Agents | — | 36.4% |
| GDP.pdf | — | 16% |
Reasoning Muse Spark 1.2 leads
Inkling-Small: 38.6 (#63), Muse Spark 1.2: 51.3 (#34)
| Benchmark | Inkling-Small | Muse Spark 1.2 |
|---|---|---|
| CritPt | 8.3% | 17.7% |
| LMArena Hard Prompts | 1423 | 1486 |
| Epoch Capabilities Index | 150.15 | 154.87 |
| ARC-AGI-2 | 40.1% | — |
| SimpleBench | — | 74.5% |
| NYT Connections (extended) | — | 79.2% |
| ARC-AGI-1 | 84% | — |
| Chess Puzzles | 18% | — |
| Mystery Game Puzzles | 6% | — |
| DTBench | — | 94.7% |
| LMCA | — | 48.4% |
Math Muse Spark 1.2 leads
Inkling-Small: 45.1 (#77), Muse Spark 1.2: 46.4 (#70)
| Benchmark | Inkling-Small | Muse Spark 1.2 |
|---|---|---|
| ProofBench | 6% | 43% |
| LMArena Math | 1459 | 1471 |
| FrontierMath (Tiers 1-3) | 46.3% | — |
| FrontierMath Tier 4 | 17.1% | — |
| OTIS Mock AIME 2024-2025 | 90% | — |
Knowledge Muse Spark 1.2 leads
Inkling-Small: 48.2 (#77), Muse Spark 1.2: 54.1 (#53)
| Benchmark | Inkling-Small | Muse Spark 1.2 |
|---|---|---|
| SimpleQA Verified | 19.1% | 60.3% |
| LMArena Expert | 1442 | 1480 |
| GPQA Diamond | 88.5% | — |
Multimodal Muse Spark 1.2 leads
Inkling-Small: 39.1 (#62), Muse Spark 1.2: 43.4 (#25)
| Benchmark | Inkling-Small | Muse Spark 1.2 |
|---|---|---|
| LMArena Vision | 1235 | 1305 |
Multilingual Muse Spark 1.2 leads
Inkling-Small: 51.7 (#104), Muse Spark 1.2: 57.1 (#11)
| Benchmark | Inkling-Small | Muse Spark 1.2 |
|---|---|---|
| LMArena Non-English | 1402 | 1478 |
| LMArena Chinese | 1465 | 1511 |
| LMArena French | 1436 | 1513 |
| LMArena Russian | 1391 | 1487 |
| LMArena Spanish | 1428 | 1498 |
| LMArena German | 1405 | — |
| LMArena Japanese | 1405 | — |
| LMArena Korean | 1363 | — |
Instruction Following Muse Spark 1.2 leads
Inkling-Small: 73.8 (#114), Muse Spark 1.2: 76.7 (#36)
| Benchmark | Inkling-Small | Muse Spark 1.2 |
|---|---|---|
| LMArena Instruction Following | 1399 | 1461 |
Long Context Muse Spark 1.2 leads
Inkling-Small: 42.7 (#118), Muse Spark 1.2: 45.2 (#48)
| Benchmark | Inkling-Small | Muse Spark 1.2 |
|---|---|---|
| LMArena Longer Query | 1401 | 1475 |
Writing & Preference Muse Spark 1.2 leads
Inkling-Small: 59.6 (#107), Muse Spark 1.2: 72.3 (#14)
| Benchmark | Inkling-Small | Muse Spark 1.2 |
|---|---|---|
| LMArena Text | 1414 | 1482 |
| LMArena Creative Writing | 1331 | 1449 |
| EQ-Bench Creative Writing | 1491 | 1840 |
| LMArena Multi-Turn | 1418 | 1494 |
Frequently asked questions
Is Inkling-Small better than Muse Spark 1.2?
Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 46.5 on the Noometry Index. Inkling-Small costs 3.1× less per token, which makes it the better buy when Muse Spark 1.2's lead doesn't matter for your workload.
Which is cheaper, Inkling-Small or Muse Spark 1.2?
Inkling-Small is cheaper. It lists at $0.45 per million input tokens and $1.20 per million output tokens; Muse Spark 1.2 lists at $1.25 and $4.25.
Is Inkling-Small or Muse Spark 1.2 better for coding?
Muse Spark 1.2 scores higher on coding benchmarks: 49.2 versus 43.6 in the Noometry coding category.
Which has the bigger context window?
Muse Spark 1.2 does, with 1.05M tokens against 524K.
How many benchmarks do Inkling-Small and Muse Spark 1.2 share?
22 benchmarks have published results for both models. Inkling-Small has 33 scored results on Noometry and Muse Spark 1.2 has 31.