Grok 4.20 0309 Reasoning vs MiMo-V2.6-Flash

Price, context window & benchmark comparison

Grok 4.20 0309 Reasoning

xAI

$1.25 / $2.50

Input / Output · per 1M tokens

MiMo-V2.6-Flash

Xiaomi

$0.14 / $0.28

Input / Output · per 1M tokens

Compare different models

Verdict: MiMo-V2.6-Flash is 8.9× cheaper than Grok 4.20 0309 Reasoning on a typical 3:1 input/output mix. MiMo-V2.6-Flash has the larger context window (1.1M vs 1M).

	Grok 4.20 0309 Reasoning	MiMo-V2.6-Flash
Input price / 1M	$1.25	$0.14
Output price / 1M	$2.50	$0.28
Blended price (3:1)	$1.56	$0.18
Cached input / 1M	$0.20	$0.0028
Context window	1M	1.1M
Max output	30K	131K
Intelligence index	—	26.7
Coding index	—	—
Providers	—	10
Best provider uptime (30m)	—	100.0%
Vision input	Yes	Yes
Reasoning	Yes	Yes
Tool calling	Yes	Yes
Released	2026-10-16	2026-09-21
Retirement	—	—

Cost calculator

Input tokens / requestOutput tokens / requestRequests / day

FAQ

Which is cheaper, Grok 4.20 0309 Reasoning or MiMo-V2.6-Flash?

MiMo-V2.6-Flash is 8.9× cheaper than Grok 4.20 0309 Reasoning on a typical 3:1 input/output mix.

Grok 4.20 0309 Reasoning vs MiMo-V2.6-Flash: which has a bigger context window?

Grok 4.20 0309 Reasoning: 1,000,000 tokens. MiMo-V2.6-Flash: 1,050,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Grok 4.20 0309 Reasoning ≈ $3,750, MiMo-V2.6-Flash ≈ $420.00.

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