AI model comparison
DeepSeek V4 Pro 0423 vs Gemini 3 Flash Preview
Side by side comparison of DeepSeek V4 Pro 0423 and Gemini 3 Flash Preview on pricing, benchmark scores, context window, and more.
DeepSeek V4 Pro is a large-scale Mixture-of-Experts model from DeepSeek with 1.6T total parameters and 49B activated parameters, supporting a 1M-token context window.
- Input / 1M
- $1.60
- Output / 1M
- $3.20
- Context
- 1.05M
Gemini 3 Flash Preview is a high speed, high value thinking model designed for agentic workflows, multi turn chat, and coding assistance.
- Input / 1M
- $0.50
- Output / 1M
- $3
- Context
- 1.05M
Comparing image generators? Compare image models
At a glance
Quick verdict
How the two models stack up on the things people ask about most.
Lower price
Gemini 3 Flash Preview
1.9x cheaper for a typical chat
Higher intelligence score
Not available
Not enough benchmark data
Larger context window
Tie
1.05M vs 1.05M tokens
Newer release
DeepSeek V4 Pro 0423
Released April 24, 2026
Benchmarks
Benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
DeepSeek V4 Pro 0423Not availableGemini 3 Flash PreviewNot availableCoding index
DeepSeek V4 Pro 042359.4Gemini 3 Flash PreviewNot availableAgentic index
DeepSeek V4 Pro 042326.3Gemini 3 Flash PreviewNot availablePricing
DeepSeek V4 Pro 0423 vs Gemini 3 Flash Preview API pricing
Per-token API rates. Cheaper option highlighted.
| Metric | DeepSeek V4 Pro 0423 | Gemini 3 Flash Preview |
|---|---|---|
| Input tokensPer 1M tokens | $1.60 | $0.50 |
| Output tokensPer 1M tokens | $3.20 | $3 |
| Cached input (read)Per 1M tokens | $0.14 | $0.05 |
| Cache writePer 1M tokens | Not available | $0.08 |
| Web searchPer request | Not available | $0.014 |
What it costs in practice
Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.
Chat message
2K in, 500 out
DeepSeek V4 Pro 0423$4.80Gemini 3 Flash Preview$2.50Coding task
30K in, 4K out
DeepSeek V4 Pro 0423$60.80$16.85 cachedGemini 3 Flash Preview$27$13.50 cachedLong document summary
150K in, 2K out
DeepSeek V4 Pro 0423$246.40$26.65 cachedGemini 3 Flash Preview$81$13.50 cachedSpecs
Context window and capabilities
How much each model can read, how much it can write, and what it accepts as input.
| Metric | DeepSeek V4 Pro 0423 | Gemini 3 Flash Preview |
|---|---|---|
| Context window | 1.05M tokens | 1.05M tokens |
| Max output | 393K tokens | 66K tokens |
| Input types | Text | Audio, File, Image, Text, Video |
| Output types | Text | Text |
| Reasoning effort levels | Extra high, High, None | High, Medium, Low, Minimal, None |
| Default reasoning effort | High | Medium |
| Release date | April 24, 2026 | December 17, 2025 |
Features
Supported features
API features available for each model.
| Metric | DeepSeek V4 Pro 0423 | Gemini 3 Flash Preview |
|---|---|---|
| Tool calling | Supported | Supported |
| Structured outputs | Supported | Supported |
| JSON mode | Supported | Supported |
| Reasoning | Supported | Supported |
| Temperature | Supported | Supported |
| Stop sequences | Supported | Supported |
| Deterministic seed | Supported | Supported |
| Verbosity control | Not supported | Not supported |
Keep exploring
More on these models
Other head-to-heads, the full model page, and the alternatives list for each model.
DeepSeek V4 Pro 0423View full model details- DeepSeek V4 Pro 0423 vs DeepSeek V4.1 Flash 1017
- DeepSeek V4 Pro 0423 vs DeepSeek V4.1 Flash
- DeepSeek V4 Pro 0423 vs Step 5 Preview
- DeepSeek V4 Pro 0423 vs GPT-5.6 Luna
- DeepSeek V4 Pro 0423 vs GLM 5.3
- DeepSeek V4 Pro 0423 vs Gemini 3.8 Flash
- DeepSeek V4 Pro 0423 vs GPT-6.1 Terra
- DeepSeek V4 Pro 0423 vs DeepSeek V4 Pro 0813
- DeepSeek V4 Pro 0423 vs Gemini 3.7 Flash
Gemini 3 Flash PreviewView full model details- Gemini 3 Flash Preview vs DeepSeek V4.1 Flash 1017
- Gemini 3 Flash Preview vs Step 5 Preview
- Gemini 3 Flash Preview vs GLM 5.3
- Gemini 3 Flash Preview vs Gemini 3.8 Flash
- Gemini 3 Flash Preview vs Gemini 4 Argon
- Gemini 3 Flash Preview vs Gemini 3.1 Flash Lite
- Gemini 3 Flash Preview vs Gemini 3.7 Flash
- Gemini 3 Flash Preview vs Gemini 2.5 Flash
- Gemini 3 Flash Preview vs Gemini 3.5 Flash Lite
Our take
Gemini 3 Flash Preview is 1.9x cheaper for a typical chat. The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.
FAQ
Frequently asked questions
Is DeepSeek V4 Pro 0423 or Gemini 3 Flash Preview cheaper?
Gemini 3 Flash Preview is cheaper for a typical chat (2K input tokens and 500 output tokens). Gemini 3 Flash Preview costs $0.50 per 1M input tokens and $3 per 1M output tokens, while DeepSeek V4 Pro 0423 costs $1.60 per 1M input tokens and $3.20 per 1M output tokens.
Which has a bigger context window, DeepSeek V4 Pro 0423 or Gemini 3 Flash Preview?
DeepSeek V4 Pro 0423 supports up to 1.05M tokens of context, compared with 1.05M for Gemini 3 Flash Preview.
Can I use DeepSeek V4 Pro 0423 and Gemini 3 Flash Preview at the same time?
Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see DeepSeek V4 Pro 0423 and Gemini 3 Flash Preview answer side by side and keep the better response.
Why choose? Ask both.
Send one prompt to DeepSeek V4 Pro 0423 and Gemini 3 Flash Preview at the same time. Compare the answers side by side and keep the best one.