Verified 2026 API Rates • Prompt Caching & Batch ROI

DeepSeek: DeepSeek V3.2 vs MoonshotAI: Kimi K3

Compare real-world API costs for DeepSeek: DeepSeek V3.2 ($0.26/$0.38) vs MoonshotAI: Kimi K3 ($0.192/$16). Calculate Prompt Caching ROI & Batch API savings.

MoonshotAI: Kimi K3 saves up to 26% on base input tokens
DeepSeek

DeepSeek: DeepSeek V3.2

deepseek-v3.2
Base Input Rate
$0.26 / 1M
Output Rate
$0.38 / 1M
Prompt Cache Read
$0.13 / 1M (-50%)
Cache Write Surcharge
$0.00 (Free write)
Batch API Discount
Not Supported
Context Window
163.84k tokens
Quality Index (MMLU)
88
Moonshot AI

MoonshotAI: Kimi K3

kimi-k3
Base Input Rate
$0.19 / 1M
Output Rate
$16.00 / 1M
Prompt Cache Read
$0.18 / 1M (-5.21%)
Cache Write Surcharge
$0.00 (Free write)
Batch API Discount
Not Supported
Context Window
1,048.576k tokens
Quality Index (MMLU)
88
Differential Module 1

Prompt Caching ROI & Write Surcharge Break-Even Analysis

Prompt caching drastically reduces input token costs for static prefixes like system prompts, tool schemas, and document chunks. Compare caching mechanisms between DeepSeek: DeepSeek V3.2 and MoonshotAI: Kimi K3:

DeepSeek: DeepSeek V3.2 Caching Profile-50% read discount

  • Cached Read Price: $0.130 per 1M tokens.
  • Write Surcharge: $0.00 (automatic caching with zero write penalty).
  • Minimum Cache Prefix: 1,024 tokens.
  • Amortization Rule: Immediate net savings from first cached read call.

MoonshotAI: Kimi K3 Caching Profile-5.21% read discount

  • Cached Read Price: $0.182 per 1M tokens.
  • Write Surcharge: $0.00 (automatic caching with zero write penalty).
  • Minimum Cache Prefix: 1,024 tokens.
  • Amortization Rule: Immediate net savings from first cached read call.
Differential Module 2

Batch API 50% Discount Offload vs Real-Time SLA

Asynchronous Batch APIs cut total token expenditures in half (50% off input and output) in exchange for non-realtime execution (up to 24-hour turnaround SLA).

Model / ArchitectureStandard Input / OutputBatch 50% Off Input / OutputTurnaround SLAOptimal Use Cases
DeepSeek: DeepSeek V3.2$0.26 / $0.38Standard on-demand rateInstant real-timeBulk evaluation, dataset labeling, background summarization
MoonshotAI: Kimi K3$0.19 / $16.00Standard on-demand rateInstant real-timeOffline document translation, embedding backfills, test suites
Differential Module 3

Context Window Escalation & Tiered Pricing Architecture

Massive context windows allow ingesting entire repositories or books, but pricing models differ drastically between flat-rate vendors and tiered step-up pricing.

DeepSeek: DeepSeek V3.2 Context Capacity

Provides a 163.84k token context window with a maximum output limit of 147.456k tokens.✓ Flat-rate billing across all prompt sizes up to max context ceiling.

MoonshotAI: Kimi K3 Context Capacity

Provides a 1,048.576k token context window with a maximum output limit of 943.718k tokens.✓ Flat-rate billing across all prompt sizes up to max context ceiling.

Quill Strategic Content

Real-World Production Scenarios: Monthly Spend Projections

Pre-computed monthly engineering bill projections across 3 representative enterprise application workloads:

Scenario 1

RAG Knowledge Base & Enterprise Search

100,000 queries/month, 3,500 input tokens (system + 5 retrieved chunks), 400 output tokens, 75% prompt cache hit rate.

DeepSeek: DeepSeek V3.2:$72.08/mo
MoonshotAI: Kimi K3:$704.58/mo
Delta Savings:-$632.50 (90%)
Architecture Verdict:DeepSeek: DeepSeek V3.2 delivers 90% lower monthly spend ($632.50/mo savings) for this workload profile.
Scenario 2

Multi-Turn Coding Agent & ReAct Loops

25,000 tasks/month, 8,000 input tokens (accumulating conversation context & tool schemas), 1,200 output tokens, 85% cache hit rate.

DeepSeek: DeepSeek V3.2:$41.30/mo
MoonshotAI: Kimi K3:$516.70/mo
Delta Savings:-$475.40 (92%)
Architecture Verdict:DeepSeek: DeepSeek V3.2 delivers 92% lower monthly spend ($475.40/mo savings) for this workload profile.
Scenario 3

High-Throughput Offline Data Extraction

500,000 records/month, 1,500 input tokens, 250 output tokens, 100% batch offload (24-hour turnaround SLA).

DeepSeek: DeepSeek V3.2:$223.00/mo
MoonshotAI: Kimi K3:$2142.50/mo
Delta Savings:-$1919.50 (90%)
Architecture Verdict:DeepSeek: DeepSeek V3.2 delivers 90% lower monthly spend ($1919.50/mo savings) for this workload profile.
Motor Interactivo en Tiempo Real

DeepSeek: DeepSeek V3.2 vs MoonshotAI: Kimi K3

Cálculos de costos mensuales en 3 cargas de trabajo empresariales habituales (RAG, Agente de Código y Limpieza por Lotes):

Live 50ms Engine
Peticiones Mensuales100,000
Tokens de Entrada / Pet.4,000
Tokens de Salida1,000
Tasa de Acierto de Caché70%
Descarga a Batch API0%
DeepSeek: DeepSeek V3.2 Más Económico

ahorra aproximadamente

DeepSeek: DeepSeek V3.2$105.60$1.056// 1k peticiones
vs
MoonshotAI: Kimi K3$1,674.00$16.740// 1k peticiones
Developer FAQs

Frequently Asked Questions: DeepSeek: DeepSeek V3.2 vs MoonshotAI: Kimi K3

Authoritative answers on API rate limits, pricing math, break-even thresholds, and architectural migration.

1Which model is cheaper overall: DeepSeek: DeepSeek V3.2 or MoonshotAI: Kimi K3?

At base pricing, DeepSeek: DeepSeek V3.2 costs $0.26/1M input and $0.38/1M output, while MoonshotAI: Kimi K3 costs $0.192/1M input and $16/1M output. The cheaper option depends on your input-to-output token ratio and whether prompt caching or batch discounts are utilized.

2How does Prompt Caching impact the cost of DeepSeek: DeepSeek V3.2 vs MoonshotAI: Kimi K3?

DeepSeek: DeepSeek V3.2 offers a 50% read discount ($0.13/1M), whereas MoonshotAI: Kimi K3 provides a 5.21% read discount ($0.182/1M). High cache hit ratios (>70%) significantly compress the cost delta in agentic and RAG architectures.

3Can I use Batch API with DeepSeek: DeepSeek V3.2 or MoonshotAI: Kimi K3 to save 50%?

DeepSeek: DeepSeek V3.2 does not have a native 50% batch endpoint. MoonshotAI: Kimi K3 uses low base on-demand pricing.

4What are the context window limits and tiered pricing rules for DeepSeek: DeepSeek V3.2 vs MoonshotAI: Kimi K3?

DeepSeek: DeepSeek V3.2 features a 163.84k context window with flat per-token pricing. In comparison, MoonshotAI: Kimi K3 supports 1,048.576k tokens with flat per-token pricing.