Claude Haiku 4.5 vs DeepSeek V4 Flash (Comparative Analysis)
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Comparative Analysis: Claude Haiku 4.5 vs. DeepSeek V4 Flash
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Overview
Claude Haiku 4.5 was released 6 months before DeepSeek V4 Flash.
 Claude Haiku 4.5 |  DeepSeek V4 Flash | |
|---|---|---|
Model Provider The organization behind this AI's development | Anthropic | DeepSeek |
Input Context Window Maximum input tokens this model can process at once | 200K tokens | 1M tokens |
Output Token Limit Maximum output tokens this model can generate at once | 64K tokens | 393.2K tokens |
Release Date When this model first became publicly available | October 15, 2025 9 months ago October 15th, 2025 | April 24, 2026 3 months ago April 24th, 2026 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Claude Haiku 4.5 | DeepSeek V4 Flash | |
|---|---|---|
Input Types Supported input formats | 📝Text🖼️Image📁File | 📝Text |
Reasoning Controls Defaults and configurable reasoning effort | Optional | OptionalEffort: Extra High, HighDefault: High |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Claude | DeepSeek |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning Mode✓Content Moderation | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation |
Open Source Model availability | Proprietary | Available on HuggingFace → |
Pricing
Claude Haiku 4.5 is roughly 7.1x more expensive compared to DeepSeek V4 Flash for input tokens and roughly 17.9x more expensive for output tokens.
| Claude Haiku 4.5 | DeepSeek V4 Flash | |
|---|---|---|
Input Token Cost Cost per million input tokens | $1.00 per million tokens | $0.14 per million tokens |
Output Token Cost Cost per million output tokens | $5.00 per million tokens | $0.28 per million tokens |
Web Search Cost Additional cost for each web search operation | $0.01 per search | Not specified |
Cache Read Cost Cost to reuse cached input tokens | $0.10 per million tokens | $0.03 per million tokens |
Cache Write Cost Cost to write input tokens to the cache | $1.25 per million tokens | Not specified |
1-Hour Cache Write Cost Cost to cache input tokens for one hour | $2.00 per million tokens | Not specified |
Benchmarks
Compare relevant benchmarks between Claude Haiku 4.5 and DeepSeek V4 Flash.
| Claude Haiku 4.5 | DeepSeek V4 Flash | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | 29.6 (Artificial Analysis index; higher is better) | 40.3 (Artificial Analysis index; higher is better) |
Coding Index Programming performance across independent evaluations | 43.9 (Artificial Analysis index; higher is better) | 56.2 (Artificial Analysis index; higher is better) |
Agentic Index Ability to complete multi-step agentic tasks | 16.4 (Artificial Analysis index; higher is better) | 31.1 (Artificial Analysis index; higher is better) |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,177 Elo (#35 in Asciiart (49.3% win rate)) | 1,254 Elo (#31 in Game Dev (50.3% win rate)) |
At a Glance
Quick overview of what makes Claude Haiku 4.5 and DeepSeek V4 Flash unique.
Claude Haiku 4.5 by Anthropic understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 200K token context window. Reasonably priced at $1.00/M input and $5.00/M output tokens. Includes built-in content moderation for safer outputs. Released October 15th, 2025.DeepSeek V4 Flash by DeepSeek can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 1M token context window. Very affordable at $0.14/M input and $0.28/M output tokens. Released April 24th, 2026.Explore More Comparisons
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Compare DeepSeek V4 Flash with:
🚀Programming
Best models for coding and development
🎨Creative & Roleplay
Models optimized for creative writing
📢Marketing
Content creation and marketing tasks
💻Technology
Technical analysis and explanations
🔬Science
Scientific research and analysis
🌐Translation
Multilingual translation tasks