ZMIME
Comparison · 2 models · Updated Oct 4, 2026

Inkling Small vs Muse Spark 1.2

Too close to call on our weighted score (Muse Spark 1.2 72, Inkling Small 70). The right pick depends on what you value most.

  1. Thinking Machines

    Inkling Small

    Released Jul 30, 2026

    70/100
    • ECI150.2
    • Price$0.50 / $1.20
    • Context1.05M
    Full specs Remove Inkling Small

  2. Meta

    Muse Spark 1.2

    Released Aug 5, 2026

    72/100
    • ECI155.0
    • Price$1.25 / $4.25
    • Context1.05M
    Full specs Remove Muse Spark 1.2

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    Make it a three-way comparison.

01 — Verdict

Too close to call

It is close. Our weighted score puts them within 2 points (Muse Spark 1.2 72/100, Inkling Small 70/100), so choose by what matters most for your work: Muse Spark 1.2 for raw capability and Inkling Small on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityMuse Spark 1.2Capabilities Index (ECI): Muse Spark 1.2 155.0 · Inkling Small 150.2
  • Lowest priceInkling SmallInkling Small $0.675 · Muse Spark 1.2 $2.00 per 1M tokens (3:1 blend)
  • Longest contextAbout the sameInkling Small 1,048,576 · Muse Spark 1.2 1,048,576 tokens
  • Widest inputsMuse Spark 1.2Inkling Small: Text, Images, Audio · Muse Spark 1.2: Text, Images, PDFs, Audio, Video
  • Self-hostingInkling SmallPublishes downloadable weights (Apache-2.0)
How the score is built
MeasureWeightInkling SmallMuse Spark 1.2
CapabilityCapabilities Index (ECI)50%7884
Price25%5836
Inputs & features15%70100
Context window10%6161
Overall100%70/10072/100
02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

Inkling Small vs Muse Spark 1.2 specifications side by side
SpecificationInkling SmallThinking MachinesMuse Spark 1.2Meta
Capability
Capabilities Index (ECI)150.2155.0 (best)
ECI rank#47 of 148#30 of 148 (best)
GPQA DiamondGraduate-level science questions88.5%—
FrontierMath Tiers 1–3Research-level mathematics46.3%—
OTIS Mock AIME 2024–2025Competition mathematics90.0%—
SimpleQA VerifiedShort factual questions19.1%60.3% (best)
Price per million tokens
Input$0.50 (best)$1.25
Output$1.20 (best)$4.25
Cached input—$0.15
Blended (3:1)$0.675 (best)$2.00
Long-context rateSame rateSame rate
Price sourceMedian of 11 providersOfficial Meta API
Limits
Context window1,048,576 tokens1,048,576 tokens
Max output1,048,576 tokens (best)131,072 tokens
Inputs and features
TextYesYes
ImagesYesYes
PDFsNoYes
AudioYesYes
VideoNoYes
ReasoningYesYesminimal · low · medium · high · xhigh
Tool callingYesYes
Structured outputNoYes
Availability
WeightsOpenApache-2.0Proprietary
API model ID—muse-spark-1.2
API providers1115 (best)
ReleasedJul 30, 2026Aug 5, 2026
Knowledge cutoff——
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • Inkling Small$7.40
  • Muse Spark 1.2$21.00
04 — Questions

Which should you choose?

Which is better: Inkling Small or Muse Spark 1.2?

It is close. Our weighted score puts them within 2 points (Muse Spark 1.2 72/100, Inkling Small 70/100), so choose by what matters most for your work: Muse Spark 1.2 for raw capability and Inkling Small on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, Inkling Small or Muse Spark 1.2?

Inkling Small is cheaper at $0.50 input / $1.20 output per million tokens (median across 11 API providers). Muse Spark 1.2 costs $1.25 input / $4.25 output per million tokens (official Meta API price). At a typical mix of three input tokens to one output token, that is $0.675 per million tokens for Inkling Small versus $2.00 for Muse Spark 1.2 (3× as much).

Which scores higher on benchmarks?

Muse Spark 1.2 scores higher on the Capabilities Index (ECI): Muse Spark 1.2 155.0 (#30 of 148) and Inkling Small 150.2 (#47 of 148). Their confidence ranges do not overlap (152.8–157.5 vs 147.5–152.1), so the gap is a real one. On individual benchmarks: SimpleQA Verified — Muse Spark 1.2 60.3%, Inkling Small 19.1%.

Which is better for coding?

There are no published SWE-bench Verified results for Inkling Small and Muse Spark 1.2 yet, so there is no like-for-like coding score. On overall capability, Muse Spark 1.2 leads, which tends to carry over to coding, but test on your own codebase. Both support tool calling for agent workflows.

Which has the bigger context window?

Inkling Small and Muse Spark 1.2 share the same 1,048,576-token context window. Maximum output per response: Inkling Small up to 1,048,576, Muse Spark 1.2 up to 131,072 tokens.

Which can read images, PDFs, audio or video?

Inkling Small accepts text, images and audio; Muse Spark 1.2 accepts text, images, PDFs, audio and video. Muse Spark 1.2 handles the widest range of inputs.

Are any of these open source?

Inkling Small publishes its weights (Apache-2.0) and can be self-hosted; Muse Spark 1.2 is proprietary.

Which is newer?

Muse Spark 1.2 is the newest, released Aug 5, 2026. Inkling Small came out Jul 30, 2026.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.

05 — Keep comparing

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