Kimi K3.1 Pro vs Phi 4

Price, context window & benchmark comparison

Moonshot AI

Kimi K3.1 Pro

Moonshot AI
$2.00 / $10.00
Input / Output · per 1M tokens
VS
Microsoft

Phi 4

Microsoft
$0.07 / $0.14
Input / Output · per 1M tokens
Compare different models
Moonshot AI
Microsoft
Verdict: Phi 4 is 45.7× cheaper than Kimi K3.1 Pro on a typical 3:1 input/output mix. Kimi K3.1 Pro has the larger context window (1M vs 16K).
Kimi K3.1 ProPhi 4
Input price / 1M$2.00$0.07
Output price / 1M$10.00$0.14
Blended price (3:1)$4.00$0.0875
Cached input / 1M$0.20—
Context window1M16K
Max output944K15K
Intelligence index46.5—
Coding index——
Providers23—
Best provider uptime (30m)100.0%—
Vision inputYesNo
ReasoningYesNo
Tool callingYesNo
Released2026-10-232025-01-10
Retirement——

Cost calculator

FAQ

Which is cheaper, Kimi K3.1 Pro or Phi 4?

Phi 4 is 45.7× cheaper than Kimi K3.1 Pro on a typical 3:1 input/output mix.

Kimi K3.1 Pro vs Phi 4: which has a bigger context window?

Kimi K3.1 Pro: 1,048,576 tokens. Phi 4: 16,384 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Kimi K3.1 Pro ≈ $9,000, Phi 4 ≈ $210.00.

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