Head-to-head list pricesKimi K3 vs DeepSeek V4 Pro API Pricing
Compare verified published API prices for Kimi K3 and DeepSeek V4 Pro. This page compares price, not output quality.
Last verified Oct 9, 2026
Quick answerVerified Oct 9, 2026, Kimi K3 lists input at $3.00 and output at $15.00 per 1M tokens, while DeepSeek V4 Pro lists $1.32 input and $3.96 output. DeepSeek V4 Pro is 56% cheaper on input. DeepSeek V4 Pro is 73.6% cheaper on output. This is a comparison of published prices only, not output quality.
Published rates
Side-by-side API pricing
Standard token prices
Which is cheaper depends on your input:output ratio
Costs below allocate 1M total tokens across each input:output ratio. They use standard prices only, without cache or Batch discounts.
| Input:output ratio | Kimi K3 | DeepSeek V4 Pro | Cheaper published price |
|---|
| 10:1 (RAG / long context) | $4.09 | $1.56 | DeepSeek V4 Pro by 61.9% |
| 3:1 (chat) | $6.00 | $1.98 | DeepSeek V4 Pro by 67% |
| 1:1 | $9.00 | $2.64 | DeepSeek V4 Pro by 70.7% |
| 1:3 (long generation) | $12.00 | $3.30 | DeepSeek V4 Pro by 72.5% |
Computed examples
Monthly cost for real workloads
| Workload | Assumed volume | Kimi K3 | DeepSeek V4 Pro | Difference |
|---|
| Side project | 10,000 requests/month 8,000,000 input + 3,000,000 output tokens | $69.00 | $22.44 | DeepSeek V4 Pro by $46.56 (67.5%) |
| Customer support chatbot | 10,000 conversations/month 121,650,000 input + 10,800,000 output tokens | $526.95 | $203.35 | DeepSeek V4 Pro by $323.60 (61.4%) |
| Agent task | 1,000 tasks/month 12,000,000 input + 3,200,000 output tokens | $84.00 | $28.51 | DeepSeek V4 Pro by $55.49 (66.1%) |
Assumptions
- Side project: 10,000 requests per month, with 800 input and 300 output tokens per request.
- Customer support chatbot: 10,000 conversations, with 6 replies per conversation, 600 system tokens, 90 user-message tokens, 1,000 retrieved-context tokens, 180 output tokens per reply, and 50% history carry.
- Agent task: 1,000 tasks, with 8 calls per task and 1,500 input plus 400 output tokens per call.
- All three rows use standard non-cached, non-batch prices and exclude retries, tools, storage, and taxes.
Provider conditions
Pricing rules that can change the answer
Kimi K3
Official pricing notes: Automatic prefix caching uses the cache-hit rate for eligible repeated prefixes of more than 256 tokens. K3 reasoning is always enabled; reasoning tokens are billed as output tokens. No current K3 Batch price is published in the canonical contract.
Full Kimi K3 pricing components
DeepSeek V4 Pro
Time-based pricing
Rates are selected by request time in UTC.
- off peak: input $0.66, cached input $0.022, output $1.98 per 1M tokens.
- peak: input $1.32, cached input $0.044, output $3.96 per 1M tokens.
Official pricing notes: Higher-capability DeepSeek tier with 1M context and 384K max output. DeepSeek uses time-based pricing. This estimate uses the peak rate; off-peak rates are 50% lower.
Full DeepSeek V4 Pro pricing components
Primary evidence and next steps
Common questions
Frequently asked questions
Is Kimi K3 cheaper than DeepSeek V4 Pro?
DeepSeek V4 Pro is 56% cheaper on input. DeepSeek V4 Pro is 73.6% cheaper on output. This compares published list prices, not output quality.
How much do Kimi K3 and DeepSeek V4 Pro cost for 10,000 requests a month?
At 800 input and 300 output tokens per request, Kimi K3 costs about $69.00 and DeepSeek V4 Pro costs about $22.44 at standard list prices.
Which is cheaper for input-heavy workloads like RAG?
At a 10:1 input-to-output token ratio, Kimi K3 costs $4.09 and DeepSeek V4 Pro costs $1.56 per 1M total tokens. DeepSeek V4 Pro by 61.9%.
Where do these prices come from?
The prices come from Moonshot AI and DeepSeek official pricing sources, verified on Sep 29, 2026 and Oct 9, 2026, respectively. See the AI API pricing dataset.