DeepSeek V4 Flash vs Gemini 2.5 Pro (Comparative Analysis)
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Comparative Analysis: DeepSeek V4 Flash vs. Gemini 2.5 Pro
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Overview
Gemini 2.5 Pro was released 10 months before DeepSeek V4 Flash.
 DeepSeek V4 Flash |  Gemini 2.5 Pro | |
|---|---|---|
Model Provider The organization behind this AI's development | DeepSeek | Google |
Input Context Window Maximum input tokens this model can process at once | 1M tokens | 1M tokens |
Output Token Limit Maximum output tokens this model can generate at once | Not specified tokens | 65.5K tokens |
Release Date When this model first became publicly available | April 24, 2026 3 months ago April 24th, 2026 | June 17, 2025 1 year ago June 17th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | Not reported | January 31, 2025 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
DeepSeek V4 Flash | Gemini 2.5 Pro | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📝Text🖼️Image📁File🎵Audio🎬Video |
Reasoning Controls Defaults and configurable reasoning effort | OptionalEffort: Extra High, HighDefault: High | Always enabled |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | DeepSeek | Gemini |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation |
Open Source Model availability | Available on HuggingFace → | Proprietary |
Pricing
DeepSeek V4 Flash is roughly 0.07x less expensive compared to Gemini 2.5 Pro for input tokens and roughly 0.02x less expensive for output tokens.
| DeepSeek V4 Flash | Gemini 2.5 Pro | |
|---|---|---|
Short Context Pricing Base rates before a long-context threshold applies | ||
Input Token Cost Cost per million input tokens | $0.09 per million tokens | $1.25 per million tokens |
Output Token Cost Cost per million output tokens | $0.19 per million tokens | $10.00 per million tokens |
Web Search Cost Additional cost for each web search operation | Not specified | $0.014 per search |
Cache Read Cost Cost to reuse cached input tokens | $0.02 per million tokens | $0.13 per million tokens |
Cache Write Cost Cost to write input tokens to the cache | Not specified | $0.38 per million tokens |
Reasoning Token Cost Cost for internal reasoning tokens | Not specified | $10.00 per million tokens |
Image Input Cost Additional cost for each image input | Not specified | $0.00000125 per image |
Audio Input Cost Additional cost for audio input | Not specified | $0.00000125 per unit |
Audio Cache Cost Cost to reuse cached audio input tokens | Not specified | $0.13 per million tokens |
Long Context Pricing Rates for prompts with 200,000 or more tokens | ||
Input Token Cost Long-context input cost per million tokens | Not specified | $2.50 per million tokens |
Output Token Cost Long-context output cost per million tokens | Not specified | $15.00 per million tokens |
Cache Read Cost Long-context cache read cost per million tokens | Not specified | $0.25 per million tokens |
Benchmarks
Compare relevant benchmarks between DeepSeek V4 Flash and Gemini 2.5 Pro.
| DeepSeek V4 Flash | Gemini 2.5 Pro | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | 40.3 (Artificial Analysis index; higher is better) | 25.8 (Artificial Analysis index; higher is better) |
Coding Index Programming performance across independent evaluations | 56.2 (Artificial Analysis index; higher is better) | 33.3 (Artificial Analysis index; higher is better) |
Agentic Index Ability to complete multi-step agentic tasks | 31.1 (Artificial Analysis index; higher is better) | 7.1 (Artificial Analysis index; higher is better) |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,254 Elo (#32 in Game Dev (50.4% win rate)) | 1,279 Elo (#17 in Data Viz (71.8% win rate)) |
At a Glance
Quick overview of what makes DeepSeek V4 Flash and Gemini 2.5 Pro unique.
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 $0.09/M input and $0.19/M output tokens. Released April 24th, 2026.Gemini 2.5 Pro by Google understands both text and images, handles audio, analyzes video, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 1M token context window. Reasonably priced at $1.25/M input and $10.00/M output tokens. Released June 17th, 2025.Explore More Comparisons
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Compare Gemini 2.5 Pro 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