Inkling 2 Small vs Muse Spark Open compared

Inkling 2 Small leads the intelligence index 30.6 to 24.9. Price per token, response speed and when to pick each.

Metric	Inkling 2 Small	Muse Spark Open (Xhigh)
Intelligence Index	30.6	24.9
Input price (per 1M tokens)	$0.30	$1.25
Output price (per 1M tokens)	$1.00	$4.25
Output speed (tokens/s)	139	207
Time to first token	2.2s	0.94s
Release date	2026-11-05	2026-10-15

Metric

Inkling 2 Small

Muse Spark Open (Xhigh)

Intelligence Index

30.6

24.9

Input price (per 1M tokens)

$0.30

$1.25

Output price (per 1M tokens)

$1.00

$4.25

Output speed (tokens/s)

139

207

Time to first token

2.2s

0.94s

Release date

2026-11-05

2026-10-15

This comparison puts Thinking Machines's Inkling 2 Small next to Meta's Muse Spark Open (Xhigh). The clearest gap is on the bill: Muse Spark Open is 4.2 times the blended price of Inkling 2 Small. This page is written automatically from catalogue numbers only: benchmark scores, list prices and measured speed.

What they cost

Per million tokens, Inkling 2 Small charges $0.30 for input and $1.00 for output, while Muse Spark Open charges $1.25 and $4.25. For output tokens, Muse Spark Open is 4.3 times the price of Inkling 2 Small.

A reference job of 1 million input tokens and 200,000 output tokens costs $0.50 with Inkling 2 Small and $2.10 with Muse Spark Open, so Inkling 2 Small saves $1.60. A bigger example, an agent that reads 50 million tokens and writes 5 million in a month, costs $20.00 on Inkling 2 Small and $83.75 on Muse Spark Open: a gap of $63.75.

When they came out

The release dates are October 15, 2026 for Muse Spark Open and November 5, 2026 for Inkling 2 Small, 21 days apart. They are effectively contemporaries.

Waiting time

Inkling 2 Small generates about 139 tokens per second and Muse Spark Open about 207 tokens per second. On long outputs, that is a real advantage for Muse Spark Open. Before any text appears, Inkling 2 Small takes 2.2 seconds and Muse Spark Open 0.94 seconds. Inkling 2 Small waits 2.4 times as long before its first token.

Add the two numbers up for a 1,500-token reply and Muse Spark Open finishes first: 13 seconds for Inkling 2 Small, 8.2 seconds for Muse Spark Open.

Inkling 2 Small leads on the intelligence index

Inkling 2 Small comes out ahead on the intelligence index, 30.6 to 24.9. A lead of this size is hard to dismiss as noise.

Across the 109 active models with an intelligence score in the catalogue, Inkling 2 Small ranks 52nd and Muse Spark Open ranks 68th.

For coding or maths work specifically, the catalogue has no dedicated index on either side yet.

Is the price in proportion?

Per point of intelligence index, Inkling 2 Small costs $0.016 of blended price per million tokens and Muse Spark Open $0.080. Inkling 2 Small scores higher and costs less per point, so on price per point there is nothing to trade off.

Common questions about Inkling 2 Small and Muse Spark Open

Is Inkling 2 Small better than Muse Spark Open?

It depends on what you need: Inkling 2 Small scores higher on the intelligence index, 30.6 to 24.9; Inkling 2 Small is 76% cheaper on blended price; and Muse Spark Open streams output 1.5 times as fast.

Where do these numbers come from?

The figures are the recorded benchmark, price and speed data in Franklin AI's model catalogue. This page is written from that data automatically; neither model was tested by hand for it.

Which is faster, Inkling 2 Small or Muse Spark Open?

Muse Spark Open generates output faster, at 207 tokens per second against 139 tokens per second. Muse Spark Open reaches its first token sooner (0.94 seconds against 2.2 seconds).

How much do Inkling 2 Small and Muse Spark Open cost?

Inkling 2 Small is cheaper on a blended basis. Inkling 2 Small lists $0.30 per million input tokens and $1.00 per million output tokens; Muse Spark Open lists $1.25 and $4.25. For 1 million input and 200,000 output tokens that is $0.50 against $2.10.

When were Inkling 2 Small and Muse Spark Open released?

Inkling 2 Small is newer. It was released on November 5, 2026, 21 days after Muse Spark Open (October 15, 2026).

Final whistle

Short answer: Inkling 2 Small has more going for it here, but Muse Spark Open is not without an argument. Pick Inkling 2 Small if cost matters ($1.00 against $4.25 per million output tokens) and you need the higher overall score (30.6 against 24.9). Pick Muse Spark Open if users are waiting on the first word and long outputs need to finish quickly.

Where the numbers come from

The scores, speed and prices in this comparison come from independent third-party model evaluations that Franklin AI syncs each day, and the article was written from a snapshot of them. For the latest results, open the Inkling 2 Small and Muse Spark Open (Xhigh) pages. The AI Benchmark methodology explains how that data is collected and shown.