Grok 4.6 Xhigh vs MiMo-V2.6-Flash: which is cheaper?

Grok 4.6 Xhigh leads the intelligence index 31.0 to 26.7. MiMo-V2.6-Flash costs 94% less on blended price. Compare price, speed, latency and a clear verdict.

Metric	Grok 4.6 (Xhigh)	MiMo-V2.6-Flash
Intelligence Index	31.0	26.7
Input price (per 1M tokens)	$2.00	$0.14
Output price (per 1M tokens)	$6.00	$0.28
Output speed (tokens/s)	62	36
Time to first token	47s	3.5s
Release date	2026-08-12	2026-09-21

Metric

Grok 4.6 (Xhigh)

MiMo-V2.6-Flash

Intelligence Index

31.0

26.7

Input price (per 1M tokens)

$2.00

$0.14

Output price (per 1M tokens)

$6.00

$0.28

Output speed (tokens/s)

Time to first token

47s

3.5s

Release date

2026-08-12

2026-09-21

This comparison puts SpaceXAI's Grok 4.6 (Xhigh) next to Xiaomi's MiMo-V2.6-Flash. The clearest gap is on the bill: Grok 4.6 Xhigh is 17 times the blended price of MiMo-V2.6-Flash. Everything below is read from the benchmark, price and speed data in Franklin AI's catalogue; nothing here comes from a hands-on test.

What they cost

The list prices are $2.00 in and $6.00 out for Grok 4.6 Xhigh, and $0.14 in and $0.28 out for MiMo-V2.6-Flash, per million tokens. That makes MiMo-V2.6-Flash's output 95% cheaper.

A reference job of 1 million input tokens and 200,000 output tokens costs $3.20 with Grok 4.6 Xhigh and $0.20 with MiMo-V2.6-Flash, so MiMo-V2.6-Flash saves $3.00. For classifying 100,000 short messages at 150 input tokens and 5 output tokens each, MiMo-V2.6-Flash would come in 93% lower: $33.00 for Grok 4.6 Xhigh against $2.24 for MiMo-V2.6-Flash. On a 3:1 blend of input to output tokens, that works out to $3.00 versus $0.175 per million.

Grok 4.6 Xhigh is the faster writer

Measured output speed is 62 tokens per second for Grok 4.6 Xhigh and 36 tokens per second for MiMo-V2.6-Flash. That makes Grok 4.6 Xhigh roughly 1.7 times as fast at writing. Time to first token is 47 seconds for Grok 4.6 Xhigh and 3.5 seconds for MiMo-V2.6-Flash. Short replies favour MiMo-V2.6-Flash; beyond about 3,700 tokens, Grok 4.6 Xhigh claws the time back. A first-token wait of that length suits background work better than live conversation.

Add the two numbers up for a 2,000-token reply and MiMo-V2.6-Flash finishes first: 79 seconds for Grok 4.6 Xhigh, 59 seconds for MiMo-V2.6-Flash.

Grok 4.6 Xhigh leads on the intelligence index

On the intelligence index, Grok 4.6 Xhigh scores 31.0 against 26.7 for MiMo-V2.6-Flash. A lead of this size is hard to dismiss as noise. In relative terms, Grok 4.6 Xhigh scores 16% higher.

Across the 109 active models with an intelligence score in the catalogue, Grok 4.6 Xhigh ranks 49th and MiMo-V2.6-Flash ranks 64th.

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

Is the price in proportion?

Per point of intelligence index, Grok 4.6 Xhigh costs $0.097 of blended price per million tokens and MiMo-V2.6-Flash $0.0066. So Grok 4.6 Xhigh buys its higher score at a premium, while MiMo-V2.6-Flash is the value pick, paying 93% less per point.

Which is newer

MiMo-V2.6-Flash arrived on September 21, 2026, 40 days after Grok 4.6 Xhigh (August 12, 2026). That is close enough to count them as the same generation.

Quick answers

Is Grok 4.6 Xhigh better than MiMo-V2.6-Flash?

Not across the board: Grok 4.6 Xhigh scores higher on the intelligence index, 31.0 to 26.7; MiMo-V2.6-Flash is 94% cheaper on blended price; Grok 4.6 Xhigh streams output 1.7 times as fast; and MiMo-V2.6-Flash reaches its first token sooner.

Which is faster, Grok 4.6 Xhigh or MiMo-V2.6-Flash?

Grok 4.6 Xhigh generates output faster, at 62 tokens per second against 36 tokens per second. MiMo-V2.6-Flash reaches its first token sooner (3.5 seconds against 47 seconds). Counting the first-token wait, MiMo-V2.6-Flash finishes short replies first and Grok 4.6 Xhigh pulls ahead beyond about 3,700 tokens.

Who makes Grok 4.6 Xhigh and MiMo-V2.6-Flash?

Grok 4.6 Xhigh is made by SpaceXAI and MiMo-V2.6-Flash by Xiaomi. Grok 4.6 Xhigh was released on August 12, 2026 and MiMo-V2.6-Flash on September 21, 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.

Which is newer, Grok 4.6 Xhigh or MiMo-V2.6-Flash?

MiMo-V2.6-Flash is newer. It was released on September 21, 2026, 40 days after Grok 4.6 Xhigh (August 12, 2026).

Final whistle

Bottom line: MiMo-V2.6-Flash is the stronger all-round pick on this data, while Grok 4.6 Xhigh makes sense in narrower cases. Pick MiMo-V2.6-Flash if cost matters ($0.28 against $6.00 per million output tokens) and users are waiting on the first word. Pick Grok 4.6 Xhigh if you need the higher overall score (31.0 against 26.7) and your outputs often run past about 3,700 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 MiMo-V2.6-Flash pages. The AI Benchmark methodology explains how that data is collected and shown.