DeepSeek V4.1 Flash vs Kimi K3
API pricing, context window and capabilities for DeepSeek V4.1 Flash and Kimi K3, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.
Verdict
computed from the published numbersDeepSeek V4.1 Flash wins on price. Kimi K3 wins on intelligence. Benchmark data is unavailable for one or both models.
Price
DeepSeek V4.1 Flash
Terminal-Bench
Not called
Intelligence
Kimi K3
Context window
Tied
Key takeaways
who wins on what, from the published numbersDeepSeek V4.1 Flash wins
- Cheaper input ($0.01 vs $0.70 /1M)
- Cheaper output ($0.60 vs $12.50 /1M)
Kimi K3 wins
- More serving providers (12 vs 14)
Cheaper overall
DeepSeek V4.1 Flash
$0.01 + $0.60 /1M
Larger context
Tied
More providers
Kimi K3
14 providers
Pricing & specs
cheapest listed route · per 1M tokensOn-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower. An OpenRouter routed quote is the price of whichever upstream provider OpenRouter prefers today, so it moves day to day.
| DeepSeek V4.1 Flash | Kimi K3 | |
|---|---|---|
| Input $/1M | $0.01via Coralbricks best | $0.70OpenRouter routed quote |
| Output $/1M | $0.60via Sail best | $12.50via Sail |
| Context window | 1M | 1M |
| Max output | 1M | 1M |
| Serving providers | 12 | 14 best |
| Date | Released Sep 10, 2026 | Released Jul 16, 2026 |
Benchmarks
Benchmark scores, side by side| DeepSeek V4.1 Flash | Kimi K3 | |
|---|---|---|
| Intelligence | 39.5 | 43.6 best |
| Terminal-Bench | Not available | 85% |
| GPQA Diamond | Not available | 94% |
| Output speed | 187 t/s best | 45 t/s |
| Latency (TTFT) | 0.96s best | 3.17s |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
DeepSeek V4.1 Flash
via Coralbricks
$1.25
Kimi K3
via OpenRouter
$19
Capabilities
feature support, side by side| Feature | DeepSeek V4.1 Flash | Kimi K3 |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Web search | — | — |
Related comparisons
Frequently asked questions
Which is cheaper, DeepSeek V4.1 Flash or Kimi K3?
DeepSeek V4.1 Flash is cheaper for input ($0.01 vs $0.70 per 1M tokens) from Coralbricks. DeepSeek V4.1 Flash is cheaper for output ($0.60 vs $12.50 per 1M tokens) from Sail.
What is the context window difference between DeepSeek V4.1 Flash and Kimi K3?
Both DeepSeek V4.1 Flash and Kimi K3 have about a 1M-token context window.
How do DeepSeek V4.1 Flash and Kimi K3 compare on benchmarks?
On the tracked benchmarks, Kimi K3 leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
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