Kimi K3 vs Seed 2.1 Turbo

Price, context window & benchmark comparison

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Kimi K3

Moonshot AI
$3.00 / $15.00
Input / Output · per 1M tokens
VS
B

Seed 2.1 Turbo

ByteDance Seed
$0.50 / $2.50
Input / Output · per 1M tokens
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B
Verdict: Seed 2.1 Turbo is 6.0× cheaper than Kimi K3 on a typical 3:1 input/output mix. Kimi K3 has the larger context window (1M vs 262K).
Kimi K3Seed 2.1 Turbo
Input price / 1M$3.00$0.50
Output price / 1M$15.00$2.50
Blended price (3:1)$6.00$1.00
Cached input / 1M$0.30
Context window1M262K
Max output944K236K
Intelligence index43.6
Coding index76.2
Providers201
Best provider uptime (30m)100.0%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-07-162026-08-12
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FAQ

Which is cheaper, Kimi K3 or Seed 2.1 Turbo?

Seed 2.1 Turbo is 6.0× cheaper than Kimi K3 on a typical 3:1 input/output mix.

Kimi K3 vs Seed 2.1 Turbo: which has a bigger context window?

Kimi K3: 1,048,576 tokens. Seed 2.1 Turbo: 262,144 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Kimi K3 ≈ $13,500, Seed 2.1 Turbo ≈ $2,250.

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