API cost decision in 10 seconds

NewSummarize vs Kimi K3

Pick Summarize for lower cost; pick Kimi K3 only if the larger context window matters more.

Page updated: 2026-10-15T01:07:46Z Data confirmed: 2026-10-15T01:07:46Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Summarize for lower cost; pick Kimi K3 only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Summarize is estimated at $0.04 vs $7.98 for Kimi K3, saving $7.94 (99.5% lower).

Cost-first pickSummarize

Context-first pickKimi K3

Sample savings$7.9499.5%

10x traffic gap$79.4

Kimi K3 has more context, but Summarize saves $7.94 on the standard workload. At 10x that traffic, the same price gap is about $79.4. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Summarize stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Summarize	Kimi K3
Input-heavy / RAG	5M input + 500K output	Summarize	$0.2	$9.9
Balanced workload	1M input + 1M output	Summarize	$0.04	$15.48
Output-heavy chatbot	1M input + 5M output	Summarize	$0.04	$75.48

Cheaper input Summarize $0.04 vs $0.48 / 1M

Summarize is $0.44 cheaper per 1M input tokens (91.7% lower; 12x difference).

Cheaper output Summarize $0 vs $15 / 1M

Summarize is free for output tokens while Kimi K3 costs $15 per 1M tokens.

Larger context Kimi K3 1M vs 1.05M

Kimi K3 has 48.58K more context (1.05x larger).

Sample workload Summarize $0.04 vs $7.98

Summarize is $7.94 cheaper on the standard workload (99.5% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Summarize Calculating… Estimated API cost

Kimi K3 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

Summarize has the lower input price; Summarize has the lower output price; Kimi K3 offers the larger context window. For the 1M input plus 500K output sample, Summarize is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.04 for Summarize and $7.98 for Kimi K3.

Best Fit

Choose Summarize when you care most about lower input-token price, and lower output-token price.

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

Decision Notes

On the standard 1M input plus 500K output workload, Summarize is estimated at $0.04 vs $7.98 for Kimi K3, saving $7.94 (99.5% lower).
Summarize is $7.94 cheaper on the standard workload (99.5% lower).
Summarize is $0.44 cheaper per 1M input tokens (91.7% lower; 12x difference).
Summarize is free for output tokens while Kimi K3 costs $15 per 1M tokens.
Kimi K3 has 48.58K more context (1.05x larger).

Head-to-Head Specs

Feature	NewSummarize (ScaleDown)	Kimi K3 (MoonshotAI)
Input Price prompt tokens per 1M	$0.04	$0.48
Completion Price per 1M tokens	$0	$15
Sample Workload Cost 1M input + 500K output	$0.04	$7.98
Context Window	1M	1.05M
Release Date	2026-10-13	2026-07-16

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Summarize	On the standard 1M input plus 500K output workload, Summarize is estimated at $0.04 vs $7.98 for Kimi K3, saving $7.94 (99.5% lower).
High-volume input processing	Summarize	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Summarize	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Kimi K3	A 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 0711 can replace Kimi K3 when lower sample workload cost matters most: $1.72.
Kimi K2.5 can replace Kimi K3 when lower sample workload cost matters most: $1.75.

Larger context near this budget

Grok 4.20 Multi-Agent offers 2M context with $2.5 sample workload cost.
Grok 4.20 offers 2M context with $2.5 sample workload cost.
Llama 4 Scout offers 1.31M context with $0.47 sample workload cost.
MiMo-V2.6-Flash offers 1.05M context with $0.28 sample workload cost.

Popular competitors

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GLM 5.3 Flash · Z.ai · #3
MiMo-V2.6-Flash · Xiaomi · #4

Cheaper alternatives

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Larger context alternatives

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Provider catalogs

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

Open provider hubs

ScaleDown catalog

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

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MoonshotAI catalog

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Open MoonshotAI models

Summarize

Summarize is an abstractive summarization model from ScaleDown. It condenses long text and documents into a fluent, faithful rewrite rather than lifting sentences from the source, and is suited for...

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...