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ModelCap

Head-to-head comparison

Muse Spark 1.3 vs Inkling

Muse Spark 1.3 (Meta) and Inkling (Thinking Machines) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 3 September 2026

As of 3 September 2026, Muse Spark 1.3 holds the stronger ModelCap Index position (#4 vs #27); Inkling is cheaper per output token ($4.05/1M vs $4.25/1M); and Inkling ships open weights.

Which should you choose?

Choose Muse Spark 1.3 if…

  • you want the stronger overall ModelCap Index position — #4 against #27 (81.7 vs 63.5 points).
  • AA Intelligence Index is your yardstick — 62.1 against 42.3.
  • you want the more recently listed model — Muse Spark 1.3 was listed 2 September 2026, Inkling 17 July 2026.

Choose Inkling if…

  • API cost matters — $4.05/1M output tokens against $4.25/1M.
  • your workload is prompt-heavy — input tokens cost $1.00/1M against $1.25/1M.
  • you want to self-host: Inkling ships open weights while Muse Spark 1.3 is api only.
  • you want provider choice — 3 listed API providers against 1.

Muse Spark 1.3 vs Inkling: specs, pricing and context

Specification comparison of Muse Spark 1.3 and Inkling
FieldMuse Spark 1.3MetaInklingThinking Machines
ModelCap Index position#4#27
Index score81.763.5
EvidenceMeasuredMeasured
Input price / 1M tokens$1.25$1.00
Output price / 1M tokens$4.25$4.05
Context window1M tokens1M tokens
Max output tokens944K472K
API providers listed13
Weight accessAPI onlyOpen weights
Input modalitiesText, Image, Video, File, AudioText, Image, Audio
First listed2 September 202617 July 2026
PublisherMetaThinking Machines

Evidence: 1 public benchmark observation across 1 board · 5 public benchmark observations across 5 boards. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Muse Spark 1.3 vs Inkling

Public benchmark boards where Muse Spark 1.3 or Inkling has a published result
BoardMuse Spark 1.3InklingLeads
Arena codingArena (LMArena)—14901482–1498Only one result
LMArena AgentLMArena—-7.0%-8.1%–-5.9%Only one result
ARC-AGI-2ARC Prize Foundation—36.5%Only one result
AA Intelligence IndexArtificial Analysis62.1intelligence-index42.3intelligence-indexMuse Spark 1.3
AA Terminal-Bench 2.1Artificial Analysis—55.1%terminal-bench-2.1Only one result
AA Humanity's Last ExamArtificial Analysis—31.9%humanitys-last-examOnly one result

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

Muse Spark 1.3 vs Inkling: common questions

Is Muse Spark 1.3 better than Inkling?

Muse Spark 1.3 ranks higher on the ModelCap Index as of 3 September 2026: #4 against #27. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it.

Is Muse Spark 1.3 cheaper than Inkling?

Inkling is cheaper on output tokens: $4.05/1M against $4.25/1M. Input tokens are $1.25/1M for Muse Spark 1.3 and $1.00/1M for Inkling. Prices are the lowest listed API offer ModelCap observed, in USD per million tokens.

Which has the bigger context window, Muse Spark 1.3 or Inkling?

Both publish a 1M-token context window.

Which is better for coding, Muse Spark 1.3 or Inkling?

The two models do not share a coding benchmark board on ModelCap yet, so no head-to-head coding score is published; the ModelCap Index position is the closest overall signal.

Are Muse Spark 1.3 and Inkling open-weight models?

Muse Spark 1.3: API only. Inkling: Open weights. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run Muse Spark 1.3 and Inkling?

ModelCap currently lists 1 API provider for Muse Spark 1.3 and 3 for Inkling, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Muse Spark 1.3 vs Inkling comparison?

Every figure comes from the sealed ModelCap dataset published 3 September 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.

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