GPT Chat Latest vs Kimi K3.1 Pro

Price, context window & benchmark comparison

OpenAI

GPT Chat Latest

OpenAI
$5.00 / $30.00
Input / Output · per 1M tokens
VS
Moonshot AI

Kimi K3.1 Pro

Moonshot AI
$2.00 / $10.00
Input / Output · per 1M tokens
Compare different models
OpenAI
Moonshot AI
Verdict: Kimi K3.1 Pro is 2.8× cheaper than GPT Chat Latest on a typical 3:1 input/output mix. Kimi K3.1 Pro has the larger context window (1M vs 400K).
GPT Chat LatestKimi K3.1 Pro
Input price / 1M$5.00$2.00
Output price / 1M$30.00$10.00
Blended price (3:1)$11.25$4.00
Cached input / 1M$0.50$0.20
Context window400K1M
Max output128K944K
Intelligence index—46.5
Coding index——
Providers—23
Best provider uptime (30m)—100.0%
Vision inputYesYes
ReasoningNoYes
Tool callingYesYes
Released2026-05-052026-10-23
Retirement——

Cost calculator

FAQ

Which is cheaper, GPT Chat Latest or Kimi K3.1 Pro?

Kimi K3.1 Pro is 2.8× cheaper than GPT Chat Latest on a typical 3:1 input/output mix.

GPT Chat Latest vs Kimi K3.1 Pro: which has a bigger context window?

GPT Chat Latest: 400,000 tokens. Kimi K3.1 Pro: 1,048,576 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GPT Chat Latest ≈ $25,000, Kimi K3.1 Pro ≈ $9,000.

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