Grok 4.6 Xhigh vs Mistral Large 4 Preview compared

Grok 4.6 Xhigh leads the intelligence index 31.0 to 25.3. Mistral Large 4 Preview costs 65% less on blended price. See token costs, speed and which to pick.

Metric	Grok 4.6 (Xhigh)	Mistral Large 4 Preview
Intelligence Index	31.0	25.3
Input price (per 1M tokens)	$2.00	$0.70
Output price (per 1M tokens)	$6.00	$2.10
Output speed (tokens/s)	62	130
Time to first token	47s	1.9s
Release date	2026-08-12	2026-10-06

Metric

Grok 4.6 (Xhigh)

Mistral Large 4 Preview

Intelligence Index

31.0

25.3

Input price (per 1M tokens)

$2.00

$0.70

Output price (per 1M tokens)

$6.00

$2.10

Output speed (tokens/s)

130

Time to first token

47s

1.9s

Release date

2026-08-12

2026-10-06

Grok 4.6 (Xhigh) from SpaceXAI and Mistral Large 4 Preview from Mistral are both tracked in Franklin AI's benchmark catalogue. This page is written automatically from catalogue numbers only: benchmark scores, list prices and measured speed. Time to first token is the standout number here: 1.9 seconds for Mistral Large 4 Preview, 47 seconds for Grok 4.6 Xhigh.

Mistral Large 4 Preview is the faster writer

Once a response is under way, Grok 4.6 Xhigh produces roughly 62 tokens per second against 130 tokens per second for Mistral Large 4 Preview. On long outputs, that is a real advantage for Mistral Large 4 Preview. Time to first token is 47 seconds for Grok 4.6 Xhigh and 1.9 seconds for Mistral Large 4 Preview. Mistral Large 4 Preview gets to its first token 24 times as fast. Waits that long are felt on every chat-style request, though they matter less for batch jobs.

Put together, an 800-token answer would take about 60 seconds from Grok 4.6 Xhigh and 8.1 seconds from Mistral Large 4 Preview, counting the first-token wait.

Reasoning and overall scores

Grok 4.6 Xhigh records 31.0 on the intelligence index and Mistral Large 4 Preview records 25.3. It is a meaningful gap rather than a rounding difference. Put another way, Mistral Large 4 Preview would need 23% more on this index to draw level.

Among 109 active scored models, Grok 4.6 Xhigh sits 49th and Mistral Large 4 Preview 67th.

There are no coding or math index scores for either model in the catalogue, which keeps this comparison at the aggregate level.

When they came out

Mistral Large 4 Preview arrived on October 6, 2026, about 2 months after Grok 4.6 Xhigh (August 12, 2026).

Running costs

Per million tokens, Grok 4.6 Xhigh charges $2.00 for input and $6.00 for output, while Mistral Large 4 Preview charges $0.70 and $2.10. That makes Mistral Large 4 Preview's output 65% cheaper.

Take 1 million input tokens and 200,000 output tokens: that comes to $3.20 on Grok 4.6 Xhigh and $1.12 on Mistral Large 4 Preview. Scale it up to classifying 100,000 short messages at 150 input tokens and 5 output tokens each and the bill is $33.00 for Grok 4.6 Xhigh against $11.55 for Mistral Large 4 Preview. Blended at three input tokens per output token, the effective rates are $3.00 for Grok 4.6 Xhigh and $1.05 for Mistral Large 4 Preview.

Is the price in proportion?

A blunt value measure, blended price over intelligence score, puts Grok 4.6 Xhigh at $0.097 and Mistral Large 4 Preview at $0.042 per point. Mistral Large 4 Preview delivers each index point for 57% less; whether Grok 4.6 Xhigh's extra 5.7 points are worth the premium depends on how often your tasks need them.

Frequently asked questions

Is Grok 4.6 Xhigh better than Mistral Large 4 Preview?

Not across the board: Grok 4.6 Xhigh scores higher on the intelligence index, 31.0 to 25.3; Mistral Large 4 Preview is 65% cheaper on blended price; and Mistral Large 4 Preview streams output 2.1 times as fast.

Does Grok 4.6 Xhigh respond faster than Mistral Large 4 Preview?

Mistral Large 4 Preview generates output faster, at 130 tokens per second against 62 tokens per second. Mistral Large 4 Preview reaches its first token sooner (1.9 seconds against 47 seconds).

Was this comparison tested by hand?

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.

Are Grok 4.6 Xhigh and Mistral Large 4 Preview from the same company?

Grok 4.6 Xhigh is made by SpaceXAI and Mistral Large 4 Preview by Mistral. Grok 4.6 Xhigh was released on August 12, 2026 and Mistral Large 4 Preview on October 6, 2026.

Which is cheaper, Grok 4.6 Xhigh or Mistral Large 4 Preview?

Mistral Large 4 Preview is cheaper on a blended basis. Grok 4.6 Xhigh lists $2.00 per million input tokens and $6.00 per million output tokens; Mistral Large 4 Preview lists $0.70 and $2.10. For 1 million input and 200,000 output tokens that is $3.20 against $1.12.

Final whistle

In one line: Mistral Large 4 Preview has more going for it here, but Grok 4.6 Xhigh is not without an argument. Pick Grok 4.6 Xhigh if you need the higher overall score (31.0 against 25.3). Pick Mistral Large 4 Preview if users are waiting on the first word and cost matters ($2.10 against $6.00 per million output tokens).

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 Grok 4.6 (Xhigh) and Mistral Large 4 Preview pages. The AI Benchmark methodology explains how that data is collected and shown.