Verified 2026 API Rates • Prompt Caching & Batch ROI

DeepSeek: DeepSeek V4 Pro 0423 vs Tencent: Hy4

Compare real-world API costs for DeepSeek: DeepSeek V4 Pro 0423 ($0.9/$1.5) vs Tencent: Hy4 ($0.417/$1.2505). Calculate Prompt Caching ROI & Batch API savings.

Tencent: Hy4 saves up to 54% on base input tokens
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
Tencent

Tencent: Hy4

hy4
Base Input Rate
$0.42 / 1M
Output Rate
$1.25 / 1M
Prompt Cache Read
$0.021 / 1M (-94.96%)
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 V4 Pro 0423 and Tencent: Hy4:

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.

Tencent: Hy4 Caching Profile-94.96% read discount

  • Cached Read Price: $0.021 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 V4 Pro 0423$0.90 / $1.50Standard on-demand rateInstant real-timeBulk evaluation, dataset labeling, background summarization
Tencent: Hy4$0.42 / $1.25Standard 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 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.

Tencent: Hy4 Context Capacity

Provides a 1,048.576k token context window with a maximum output limit of 65.536k 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 V4 Pro 0423:$204.38/mo
Tencent: Hy4:$92.02/mo
Delta Savings:-$112.36 (55%)
Architecture Verdict:Tencent: Hy4 delivers 55% lower monthly spend ($112.36/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 V4 Pro 0423:$114.50/mo
Tencent: Hy4:$53.59/mo
Delta Savings:-$60.91 (53%)
Architecture Verdict:Tencent: Hy4 delivers 53% lower monthly spend ($60.91/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 V4 Pro 0423:$765.00/mo
Tencent: Hy4:$409.66/mo
Delta Savings:-$355.34 (46%)
Architecture Verdict:Tencent: Hy4 delivers 46% lower monthly spend ($355.34/mo savings) for this workload profile.
밀리초 단위 실시간 반응형 엔진

DeepSeek: DeepSeek V4 Pro 0423 vs Tencent: Hy4

기업의 대표 3대 워크로드(RAG 지식 검색, 코딩 에이전트, 오프라인 배치 추출)에 대한 정밀 청구액 산출:

Live 50ms Engine
월간 요청 건수 (Requests)100,000
요청당 입력 토큰 (Input Tokens)4,000
요청당 출력 토큰 (Output Tokens)1,000
프롬프트 캐시 적중률 (Cache Hit Rate)70%
Batch API 오프로드 비율0%
Tencent: Hy4 더 저렴함

월간 예상 절감액

DeepSeek: DeepSeek V4 Pro 0423$328.00$3.280// 1천 회 요청
vs
Tencent: Hy4$180.97$1.810// 1천 회 요청
Developer FAQs

Frequently Asked Questions: DeepSeek: DeepSeek V4 Pro 0423 vs Tencent: Hy4

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

1Which model is cheaper overall: DeepSeek: DeepSeek V4 Pro 0423 or Tencent: Hy4?

At base pricing, DeepSeek: DeepSeek V4 Pro 0423 costs $0.9/1M input and $1.5/1M output, while Tencent: Hy4 costs $0.417/1M input and $1.2505/1M 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 V4 Pro 0423 vs Tencent: Hy4?

DeepSeek: DeepSeek V4 Pro 0423 offers a 72.22% read discount ($0.25/1M), whereas Tencent: Hy4 provides a 94.96% read discount ($0.021/1M). High cache hit ratios (>70%) significantly compress the cost delta in agentic and RAG architectures.

3Can I use Batch API with DeepSeek: DeepSeek V4 Pro 0423 or Tencent: Hy4 to save 50%?

DeepSeek: DeepSeek V4 Pro 0423 does not have a native 50% batch endpoint. Tencent: Hy4 uses low base on-demand pricing.

4What are the context window limits and tiered pricing rules for DeepSeek: DeepSeek V4 Pro 0423 vs Tencent: Hy4?

DeepSeek: DeepSeek V4 Pro 0423 features a 1,048.576k context window with flat per-token pricing. In comparison, Tencent: Hy4 supports 1,048.576k tokens with flat per-token pricing.