AI model comparison
DeepSeek V4 Flash 0423 vs Kimi K2 Thinking
Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.
DeepSeek
DeepSeek V4 Flash 0423
DeepSeek V4 Flash is an efficiency-optimized Mixture-of-Experts model from DeepSeek with 284B total parameters and 13B activated parameters, supporting a 1M-token context window.
- Input / 1M
- $0.01
- Output / 1M
- $1.28
- Context
- 1.05M
Moonshot AI
Kimi K2 Thinking
Kimi K2 Thinking is Moonshot AI’s most advanced open reasoning model to date, extending the K2 series into agentic, long-horizon reasoning.
- Input / 1M
- $0.60
- Output / 1M
- $2.50
- Context
- 262K
At a glance
Quick verdict
How the two models stack up on the things people ask about most.
Lower price
DeepSeek V4 Flash 0423
3.7x cheaper for a typical chat
Higher intelligence score
DeepSeek V4 Flash 0423
24.4 vs 22 on Artificial Analysis
Larger context window
DeepSeek V4 Flash 0423
1.05M vs 262K tokens
Newer release
DeepSeek V4 Flash 0423
Released April 24, 2026
Benchmarks
Benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
Coding index
Agentic index
Pricing
DeepSeek V4 Flash 0423 vs Kimi K2 Thinking API pricing
Per-token API rates. Cheaper option highlighted.
| Metric | ||
|---|---|---|
| Input tokensPer 1M tokens | $0.01 | $0.60 |
| Output tokensPer 1M tokens | $1.28 | $2.50 |
| Cached input (read)Per 1M tokens | $0.01 | $0.15 |
| Cache writePer 1M tokens | Not available | Not available |
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
Coding task
30K in, 4K out
Long document summary
150K in, 2K out
Specs
Context window and capabilities
How much each model can read, how much it can write, and what it accepts as input.
| Metric | ||
|---|---|---|
| Context window | 1.05M tokens | 262K tokens |
| Max output | 944K tokens | 98K tokens |
| Input types | Text | Text |
| Output types | Text | Text |
| Reasoning effort levels | Extra high, High | Not available |
| Default reasoning effort | High | Not available |
| Release date | April 24, 2026 | November 6, 2025 |
Features
Supported features
API features available for each model.
| Metric | ||
|---|---|---|
| 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 |
Our take
DeepSeek V4 Flash 0423 is 3.7x cheaper for a typical chat. DeepSeek V4 Flash 0423 scores higher on the Artificial Analysis Intelligence Index (24.4 vs 22). DeepSeek V4 Flash 0423 has the larger context window (1.05M vs 262K tokens). 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 Flash 0423 or Kimi K2 Thinking cheaper?
DeepSeek V4 Flash 0423 is cheaper for a typical chat (2K input tokens and 500 output tokens). DeepSeek V4 Flash 0423 costs $0.01 per 1M input tokens and $1.28 per 1M output tokens, while Kimi K2 Thinking costs $0.60 per 1M input tokens and $2.50 per 1M output tokens.
Which has a bigger context window, DeepSeek V4 Flash 0423 or Kimi K2 Thinking?
DeepSeek V4 Flash 0423 supports up to 1.05M tokens of context, compared with 262K for Kimi K2 Thinking.
Is DeepSeek V4 Flash 0423 smarter than Kimi K2 Thinking?
On the Artificial Analysis Intelligence Index, DeepSeek V4 Flash 0423 scores 24.4 and Kimi K2 Thinking scores 22, putting DeepSeek V4 Flash 0423 ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.
Can I use DeepSeek V4 Flash 0423 and Kimi K2 Thinking at the same time?
Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see DeepSeek V4 Flash 0423 and Kimi K2 Thinking answer side by side and keep the better response.
Why choose? Ask both.
Send one prompt to DeepSeek V4 Flash 0423 and Kimi K2 Thinking at the same time. Compare the answers side by side and keep the best one.