Verified 2026 API Rates • Prompt Caching & Batch ROI

Anthropic: Claude Haiku 4.5 vs DeepSeek: DeepSeek V4 Pro 0423

Compare real-world API costs for Anthropic: Claude Haiku 4.5 ($1/$5) vs DeepSeek: DeepSeek V4 Pro 0423 ($0.9/$1.5). Calculate Prompt Caching ROI & Batch API savings.

DeepSeek: DeepSeek V4 Pro 0423 saves up to 10% on base input tokens
Anthropic

Anthropic: Claude Haiku 4.5

claude-haiku-4.5
Base Input Rate
$1.00 / 1M
Output Rate
$5.00 / 1M
Prompt Cache Read
$0.10 / 1M (-90%)
Cache Write Surcharge
$1.25 / 1M (+25%)
Batch API Discount
-50% Off
Context Window
200k tokens
Quality Index (MMLU)
88
DeepSeek

DeepSeek: DeepSeek V4 Pro 0423

deepseek-v4-pro
Base Input Rate
$0.90 / 1M
Output Rate
$1.50 / 1M
Prompt Cache Read
$0.25 / 1M (-72.22%)
Cache Write Surcharge
$0.00 (Free write)
Batch API Discount
Not Supported
Context Window
1,048.576k tokens
Quality Index (MMLU)
92.4
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 Anthropic: Claude Haiku 4.5 and DeepSeek: DeepSeek V4 Pro 0423:

Anthropic: Claude Haiku 4.5 Caching Profile-90% read discount

  • Cached Read Price: $0.100 per 1M tokens.
  • Write Surcharge: $1.25/1M (+25% fee on initial cache write).
  • Minimum Cache Prefix: 1,024 tokens.
  • Amortization Rule: Net cost savings begin when prefix is reused > 1.25 times within TTL.

DeepSeek: DeepSeek V4 Pro 0423 Caching Profile-72.22% read discount

  • Cached Read Price: $0.250 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
Anthropic: Claude Haiku 4.5$1.00 / $5.00$0.50 / $2.50 (-50%)24 Hours max (typically 30m - 2h)Bulk evaluation, dataset labeling, background summarization
DeepSeek: DeepSeek V4 Pro 0423$0.90 / $1.50Standard 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.

Anthropic: Claude Haiku 4.5 Context Capacity

Provides a 200k token context window with a maximum output limit of 64k tokens.✓ Flat-rate billing across all prompt sizes up to max context ceiling.

DeepSeek: DeepSeek V4 Pro 0423 Context Capacity

Provides a 1,048.576k token context window with a maximum output limit of 393.216k 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.

Anthropic: Claude Haiku 4.5:$331.25/mo
DeepSeek: DeepSeek V4 Pro 0423:$204.38/mo
Delta Savings:-$126.88 (38%)
Architecture Verdict:DeepSeek: DeepSeek V4 Pro 0423 delivers 38% lower monthly spend ($126.88/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.

Anthropic: Claude Haiku 4.5:$191.47/mo
DeepSeek: DeepSeek V4 Pro 0423:$114.50/mo
Delta Savings:-$76.97 (40%)
Architecture Verdict:DeepSeek: DeepSeek V4 Pro 0423 delivers 40% lower monthly spend ($76.97/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).

Anthropic: Claude Haiku 4.5:$638.75/mo
DeepSeek: DeepSeek V4 Pro 0423:$765.00/mo
Delta Savings:-$126.25 (17%)
Architecture Verdict:Anthropic: Claude Haiku 4.5 delivers 17% lower monthly spend ($126.25/mo savings) for this workload profile.
毫秒級即時互動模擬引擎

Anthropic: Claude Haiku 4.5 對比 DeepSeek: DeepSeek V4 Pro 0423

針對企業典型三大工程落地形態(RAG 知識庫、Coding Agent 多輪、離線批次清洗)進行精確成本演算:

Live 50ms Engine
月度請求量 (Requests)100,000
單次輸入代幣 (Input Tokens)4,000
單次輸出代幣 (Output Tokens)1,000
Prompt 快取命中率 (Cache Hit)70%
Batch API 批次分流比例0%
DeepSeek: DeepSeek V4 Pro 0423 更便宜

預計每月節省

Anthropic: Claude Haiku 4.5$668.00$6.680// 千次請求
對比
DeepSeek: DeepSeek V4 Pro 0423$328.00$3.280// 千次請求
Developer FAQs

Frequently Asked Questions: Anthropic: Claude Haiku 4.5 vs DeepSeek: DeepSeek V4 Pro 0423

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

1Which model is cheaper overall: Anthropic: Claude Haiku 4.5 or DeepSeek: DeepSeek V4 Pro 0423?

At base pricing, Anthropic: Claude Haiku 4.5 costs $1/1M input and $5/1M output, while DeepSeek: DeepSeek V4 Pro 0423 costs $0.9/1M input and $1.5/1M 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 Anthropic: Claude Haiku 4.5 vs DeepSeek: DeepSeek V4 Pro 0423?

Anthropic: Claude Haiku 4.5 offers a 90% read discount ($0.1/1M), whereas DeepSeek: DeepSeek V4 Pro 0423 provides a 72.22% read discount ($0.25/1M). High cache hit ratios (>70%) significantly compress the cost delta in agentic and RAG architectures.

3Can I use Batch API with Anthropic: Claude Haiku 4.5 or DeepSeek: DeepSeek V4 Pro 0423 to save 50%?

Anthropic: Claude Haiku 4.5 supports 50% batch offload discounts for asynchronous 24-hour turnaround tasks. DeepSeek: DeepSeek V4 Pro 0423 uses low base on-demand pricing.

4What are the context window limits and tiered pricing rules for Anthropic: Claude Haiku 4.5 vs DeepSeek: DeepSeek V4 Pro 0423?

Anthropic: Claude Haiku 4.5 features a 200k context window with flat per-token pricing. In comparison, DeepSeek: DeepSeek V4 Pro 0423 supports 1,048.576k tokens with flat per-token pricing.