Head to head
Inkling vs Muse Spark Open.
Verdict by category, tale of the tape, shared benchmarks only, and cost at three workloads — all from the tracked data.
Verdict by category
| Category | Inkling | Muse Spark Open | Winner |
|---|---|---|---|
| League Score | 24.6 | 27.4 | Muse Spark Open |
| Coding (SWE-bench %) | — | — | — |
| Reasoning (GPQA %) | — | — | — |
| Context (tokens) | 262144 | 1048576 | Muse Spark Open |
| Speed (tok/s) | — | — | — |
Tale of the tape
| Spec | Inkling | Muse Spark Open |
|---|---|---|
| Maker | Thinking Machines Lab | Meta |
| Released | Jul 15, 2026 | Oct 15, 2026 |
| League Score | 25 | 27 |
| Context | 262,144 tokens | 1,048,576 tokens |
| Max output | — | — |
| $/1M input | — | — |
| $/1M output | — | — |
| Weights | Open | Open |
| Speed | — | — |
Head-to-head benchmarks (shared only)
| Benchmark | Inkling | Muse Spark Open |
|---|---|---|
| LiveBench overall | 47.0 | 51.6 |
Cost at three workloads
| Workload | Inkling | Muse Spark Open |
|---|---|---|
| Light — 1M in / 250K out | — | — |
| Standard — 10M in / 2.5M out | — | — |
| Long-context — 50M in / 5M out | — | — |
The pick
Pick Muse Spark Open if you want the higher overall League Score; you need the bigger context window.
All figures from the model database — sources and dates on each model page. Cost your own workload or compare a different pair.
Frequently asked questions
Which is better overall, Inkling or Muse Spark Open?
Muse Spark Open leads on overall League Score, 27 to 25 — a gap of 3 points on a composite of sourced benchmarks. That is overall form, not every category: check the per-category verdicts before choosing.
Which has the bigger context window, Inkling or Muse Spark Open?
Muse Spark Open, with 1M of context against 262.1K for Inkling.
Are Inkling and Muse Spark Open open source?
Inkling is open weights — it can be downloaded and self-hosted; Muse Spark Open is open weights — it can be downloaded and self-hosted.