GPT-6.1 Sol Max vs Muse Spark 1.3 Max compared

GPT-6.1 Sol Max leads the intelligence index 54.6 to 36.6. Price per token, response speed and when to pick each.

Metric	GPT-6.1 Sol (Max)	Muse Spark 1.3 (Max)
Intelligence Index	54.6	36.6
Input price (per 1M tokens)	$2.00	$1.25
Output price (per 1M tokens)	$10.00	$4.25
Output speed (tokens/s)	60	140
Time to first token	5.4 min	36s
Release date	2026-09-29	2026-09-02

Metric

GPT-6.1 Sol (Max)

Muse Spark 1.3 (Max)

Intelligence Index

54.6

36.6

Input price (per 1M tokens)

$2.00

$1.25

Output price (per 1M tokens)

$10.00

$4.25

Output speed (tokens/s)

140

Time to first token

5.4 min

36s

Release date

2026-09-29

2026-09-02

Comparing GPT-6.1 Sol (Max) with Muse Spark 1.3 (Max) is really a question of how much capability you are willing to give up, and what you get back for it. The biggest separation is in overall capability: 54.6 for GPT-6.1 Sol Max against 36.6 for Muse Spark 1.3 Max. Everything below is read from the benchmark, price and speed data in Franklin AI's catalogue; nothing here comes from a hands-on test.

GPT-6.1 Sol Max leads on the intelligence index

On the intelligence index, GPT-6.1 Sol Max scores 54.6 against 36.6 for Muse Spark 1.3 Max. The difference is large enough that the lower-scoring model has to win on cost or speed to stay in the running. Put another way, Muse Spark 1.3 Max would need 49% more on this index to draw level.

For context, that places GPT-6.1 Sol Max 8th and Muse Spark 1.3 Max 36th out of 109 scored models still on offer.

Specialist coding and math indexes are missing for both, so treat the overall score as the only capability signal here.

Release timing

GPT-6.1 Sol Max arrived on September 29, 2026, 27 days after Muse Spark 1.3 Max (September 2, 2026). They are effectively contemporaries.

Price per token

The list prices are $2.00 in and $10.00 out for GPT-6.1 Sol Max, and $1.25 in and $4.25 out for Muse Spark 1.3 Max, per million tokens. For output tokens, GPT-6.1 Sol Max is 2.4 times the price of Muse Spark 1.3 Max.

Take 1 million input tokens and 200,000 output tokens: that comes to $4.00 on GPT-6.1 Sol Max and $2.10 on Muse Spark 1.3 Max. A bigger example, classifying 100,000 short messages at 150 input tokens and 5 output tokens each, costs $35.00 on GPT-6.1 Sol Max and $20.88 on Muse Spark 1.3 Max: a gap of $14.13. Blended at three input tokens per output token, the effective rates are $4.00 for GPT-6.1 Sol Max and $2.00 for Muse Spark 1.3 Max.

Value for money

Per point of intelligence index, GPT-6.1 Sol Max costs $0.073 of blended price per million tokens and Muse Spark 1.3 Max $0.055. GPT-6.1 Sol Max costs 1.3 times as much per point, which is the price of its lead.

Muse Spark 1.3 Max is the faster writer

Measured output speed is 60 tokens per second for GPT-6.1 Sol Max and 140 tokens per second for Muse Spark 1.3 Max. Muse Spark 1.3 Max is ahead by 135% on throughput. Time to first token is 5.4 minutes for GPT-6.1 Sol Max and 36 seconds for Muse Spark 1.3 Max. In an interactive app, Muse Spark 1.3 Max will feel noticeably more responsive. Waits that long are felt on every chat-style request, though they matter less for batch jobs.

Put together, a 1,500-token answer would take about 5.8 minutes from GPT-6.1 Sol Max and 47 seconds from Muse Spark 1.3 Max, counting the first-token wait.

Quick answers

Is Muse Spark 1.3 Max better than GPT-6.1 Sol Max?

It depends on what you need: GPT-6.1 Sol Max scores higher on the intelligence index, 54.6 to 36.6; Muse Spark 1.3 Max is 50% cheaper on blended price; and Muse Spark 1.3 Max streams output 2.4 times as fast.

Does GPT-6.1 Sol Max respond faster than Muse Spark 1.3 Max?

Muse Spark 1.3 Max generates output faster, at 140 tokens per second against 60 tokens per second. Muse Spark 1.3 Max reaches its first token sooner (36 seconds against 5.4 minutes).

Is Muse Spark 1.3 Max cheaper than GPT-6.1 Sol Max?

Muse Spark 1.3 Max is cheaper on a blended basis. GPT-6.1 Sol Max lists $2.00 per million input tokens and $10.00 per million output tokens; Muse Spark 1.3 Max lists $1.25 and $4.25. For 1 million input and 200,000 output tokens that is $4.00 against $2.10.

Are GPT-6.1 Sol Max and Muse Spark 1.3 Max from the same company?

GPT-6.1 Sol Max is made by OpenAI and Muse Spark 1.3 Max by Meta. GPT-6.1 Sol Max was released on September 29, 2026 and Muse Spark 1.3 Max on September 2, 2026.

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.

Final whistle

In one line: GPT-6.1 Sol Max is the stronger all-round pick on this data, while Muse Spark 1.3 Max makes sense in narrower cases. Pick GPT-6.1 Sol Max if you need the higher overall score (54.6 against 36.6). Pick Muse Spark 1.3 Max 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 GPT-6.1 Sol (Max) and Muse Spark 1.3 (Max) pages. The AI Benchmark methodology explains how that data is collected and shown.