API cost decision in 10 seconds

🔥Kimi K3 vs NewDots3-Note Preview (free)

Pick Dots3-Note Preview (free) for lower cost; pick Kimi K3 only if the larger context window matters more.

Page updated:  Data confirmed:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Dots3-Note Preview (free) for lower cost; pick Kimi K3 only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Dots3-Note Preview (free) is estimated at $0 vs $10.5 for Kimi K3, saving $10.5 (100% lower).

Cost-first pickDots3-Note Preview (free)
Context-first pickKimi K3
Sample savings$10.5100%
10x traffic gap$105

Kimi K3 has more context, but Dots3-Note Preview (free) saves $10.5 on the standard workload. At 10x that traffic, the same price gap is about $105. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Dots3-Note Preview (free) stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickKimi K3Dots3-Note Preview (free)
Input-heavy / RAG5M input + 500K outputDots3-Note Preview (free)$22.5$0
Balanced workload1M input + 1M outputDots3-Note Preview (free)$18$0
Output-heavy chatbot1M input + 5M outputDots3-Note Preview (free)$78$0
Cheaper input Dots3-Note Preview (free) $3 vs $0 / 1M

Dots3-Note Preview (free) is free for input tokens while Kimi K3 costs $3 per 1M tokens.

Cheaper output Dots3-Note Preview (free) $15 vs $0 / 1M

Dots3-Note Preview (free) is free for output tokens while Kimi K3 costs $15 per 1M tokens.

Larger context Kimi K3 1.05M vs 512K

Kimi K3 has 536.58K more context (2.05x larger).

Sample workload Dots3-Note Preview (free) $10.5 vs $0

Dots3-Note Preview (free) is free for the standard workload while the other model is estimated at $10.5.

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Kimi K3 Calculating… Estimated API cost
Dots3-Note Preview (free) Calculating… Estimated API cost
Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

Dots3-Note Preview (free) has the lower input price; Dots3-Note Preview (free) has the lower output price; Kimi K3 offers the larger context window. For the 1M input plus 500K output sample, Dots3-Note Preview (free) is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $10.5 for Kimi K3 and $0 for Dots3-Note Preview (free).

Best Fit

Choose Kimi K3 when you care most about larger context window.

Choose Dots3-Note Preview (free) when you care most about lower input-token price, and lower output-token price.

Decision Notes
  • On the standard 1M input plus 500K output workload, Dots3-Note Preview (free) is estimated at $0 vs $10.5 for Kimi K3, saving $10.5 (100% lower).
  • Dots3-Note Preview (free) is free for the standard workload while the other model is estimated at $10.5.
  • Dots3-Note Preview (free) is free for input tokens while Kimi K3 costs $3 per 1M tokens.
  • Dots3-Note Preview (free) is free for output tokens while Kimi K3 costs $15 per 1M tokens.
  • Kimi K3 has 536.58K more context (2.05x larger).
Head-to-Head Specs
Feature🔥Kimi K3
(MoonshotAI)
NewDots3-Note Preview (free)
(Dots Studio)
Input Price
prompt tokens per 1M
$3$0
Completion Price
per 1M tokens
$15$0
Sample Workload Cost
1M input + 500K output
$10.5$0
Context Window1.05M512K
Release Date
Popularity#14

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionDots3-Note Preview (free)On the standard 1M input plus 500K output workload, Dots3-Note Preview (free) is estimated at $0 vs $10.5 for Kimi K3, saving $10.5 (100% lower).
High-volume input processingDots3-Note Preview (free)Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsDots3-Note Preview (free)Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workKimi K3A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • Kimi K2.7 Code (free) can replace Kimi K3 when lower sample workload cost matters most: $0.
  • Kimi K2.6 (free) can replace Kimi K3 when lower sample workload cost matters most: $0.
  • Kimi K2.5 can replace Kimi K3 when lower sample workload cost matters most: $1.57.
  • Kimi K2 0711 can replace Kimi K3 when lower sample workload cost matters most: $1.72.

Cheaper alternatives

Review low-cost models sorted by a standard 1M input plus 500K output workload.

Open cheapest models

Larger context alternatives

Find models with larger context windows for RAG, long documents, and codebase review.

Open largest context models

Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

Open provider hubs

MoonshotAI catalog

Review all tracked MoonshotAI models before deciding whether this matchup is the right shortlist.

Open MoonshotAI models

Dots Studio catalog

Check other Dots Studio models with comparable pricing, context, or release timing.

Open Dots Studio models
Kimi K3

Kimi K3 is a 2.8T parameter open-weight multimodal reasoning model from Moonshot AI. It is suited for complex coding, knowledge work, and long-horizon agentic workflows, and is particularly strong at...

Dots3-Note Preview (free)

Dots3-Note Preview is an open-weight mixture-of-experts model from Dots Studio, with 16B active parameters out of 280B total. It is the lightest model in the Dots 3 family and is...