GPT-5.6 Luna Max vs MiMo-V2.6-Flash: speed, latency and cost

MiMo-V2.6-Flash leads the intelligence index 26.7 to 23.8. MiMo-V2.6-Flash costs 61% less on blended price. Benchmarks, sample bills, speed and a verdict.

Metric	GPT-5.6 Luna (Max)	MiMo-V2.6-Flash
Intelligence Index	23.8	26.7
Input price (per 1M tokens)	$0.20	$0.14
Output price (per 1M tokens)	$1.20	$0.28
Output speed (tokens/s)	125	36
Time to first token	108s	3.5s
Release date	2026-07-09	2026-09-21

Metric

GPT-5.6 Luna (Max)

MiMo-V2.6-Flash

Intelligence Index

23.8

26.7

Input price (per 1M tokens)

$0.20

$0.14

Output price (per 1M tokens)

$1.20

$0.28

Output speed (tokens/s)

125

Time to first token

108s

3.5s

Release date

2026-07-09

2026-09-21

GPT-5.6 Luna (Max) and MiMo-V2.6-Flash are close rivals from OpenAI and Xiaomi. GPT-5.6 Luna Max streams output at about 125 tokens per second, 3.5 times the rate of MiMo-V2.6-Flash. This page is written automatically from catalogue numbers only: benchmark scores, list prices and measured speed.

How fast they respond

GPT-5.6 Luna Max generates about 125 tokens per second and MiMo-V2.6-Flash about 36 tokens per second. On outputs beyond about 5,300 tokens, that is a real advantage for GPT-5.6 Luna Max. Before any text appears, GPT-5.6 Luna Max takes 108 seconds and MiMo-V2.6-Flash 3.5 seconds. That is a genuine trade-off: MiMo-V2.6-Flash starts sooner, while GPT-5.6 Luna Max finishes first once outputs run beyond about 5,300 tokens. A first-token wait of that length suits background work better than live conversation.

For a 2,000-token response, first token plus generation comes to roughly 2.1 minutes on GPT-5.6 Luna Max and 59 seconds on MiMo-V2.6-Flash.

What they cost

GPT-5.6 Luna Max lists $0.20 per million input tokens and $1.20 per million output tokens; MiMo-V2.6-Flash lists $0.14 and $0.28. GPT-5.6 Luna Max costs 4.3 times as much per output token.

For a sample workload of 1 million input tokens and 200,000 output tokens, GPT-5.6 Luna Max would cost $0.44 and MiMo-V2.6-Flash $0.20, a difference of $0.24. For a support assistant answering 10,000 conversations of 2,000 input and 500 output tokens each, MiMo-V2.6-Flash would come in 58% lower: $10.00 for GPT-5.6 Luna Max against $4.20 for MiMo-V2.6-Flash. Blended at three input tokens per output token, the effective rates are $0.45 for GPT-5.6 Luna Max and $0.175 for MiMo-V2.6-Flash.

Reasoning and overall scores

The catalogue puts GPT-5.6 Luna Max at 23.8 and MiMo-V2.6-Flash at 26.7 on its intelligence index. That is a modest edge: real, but small enough that the right set of tasks could reverse it. Put another way, GPT-5.6 Luna Max would need 12% more on this index to draw level.

For context, that places GPT-5.6 Luna Max 70th and MiMo-V2.6-Flash 64th out of 109 scored models still on offer.

Neither model has a separate coding or math index recorded yet, so those narrower comparisons will have to wait for more data.

Cost per point of intelligence

Dividing the blended price by the intelligence index gives a rough cost per point: $0.019 for GPT-5.6 Luna Max and $0.0066 for MiMo-V2.6-Flash, per million tokens. With the higher score and the lower cost per point, MiMo-V2.6-Flash is the better value per point on these numbers.

Which is newer

GPT-5.6 Luna Max came first, on July 9, 2026; MiMo-V2.6-Flash followed on September 21, 2026.

Frequently asked questions

Is MiMo-V2.6-Flash better than GPT-5.6 Luna Max?

It depends on what you need: MiMo-V2.6-Flash scores higher on the intelligence index, 26.7 to 23.8; MiMo-V2.6-Flash is 61% cheaper on blended price; GPT-5.6 Luna Max streams output 3.5 times as fast; and MiMo-V2.6-Flash reaches its first token sooner.

Who makes GPT-5.6 Luna Max and MiMo-V2.6-Flash?

GPT-5.6 Luna Max is made by OpenAI and MiMo-V2.6-Flash by Xiaomi. GPT-5.6 Luna Max was released on July 9, 2026 and MiMo-V2.6-Flash on September 21, 2026.

Which is newer, GPT-5.6 Luna Max or MiMo-V2.6-Flash?

MiMo-V2.6-Flash is newer. It was released on September 21, 2026, about 2 months after GPT-5.6 Luna Max (July 9, 2026).

Which is cheaper, GPT-5.6 Luna Max or MiMo-V2.6-Flash?

MiMo-V2.6-Flash is cheaper on a blended basis. GPT-5.6 Luna Max lists $0.20 per million input tokens and $1.20 per million output tokens; MiMo-V2.6-Flash lists $0.14 and $0.28. For 1 million input and 200,000 output tokens that is $0.44 against $0.20.

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

Short answer: MiMo-V2.6-Flash has more going for it here, but GPT-5.6 Luna Max is not without an argument. Pick MiMo-V2.6-Flash if users are waiting on the first word and cost matters ($0.28 against $1.20 per million output tokens). Pick GPT-5.6 Luna Max if your outputs often run past about 5,300 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 GPT-5.6 Luna (Max) and MiMo-V2.6-Flash pages. The AI Benchmark methodology explains how that data is collected and shown.