Kimi K3.1 Pro vs DeepSeek V4.1 Flash 1017
Detailed technical comparison between Kimi K3.1 Pro (Moonshot AI) and DeepSeek V4.1 Flash 1017 (DeepSeek). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.
Comparison Snapshot
Tie
Equal CapacityTie
Equal CapabilityTie
Equal SpeedDeepSeek V4.1 Flash 1017
$0.15 / MTokKimi K3.1 Pro
Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window. It is built for long-horizon coding, 3D...
DeepSeek V4.1 Flash 1017
DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the `deepseek-flash` API model name. V4.1 Flash is a sparse mixture-of-experts model...
Technical Specifications
🏆 = Superior Spec| Specification | Kimi K3.1 Pro | DeepSeek V4.1 Flash 1017 |
|---|---|---|
| Provider | Moonshot AI | DeepSeek |
| Context Window | 1,048,576 tokens | 1,048,576 tokens |
| Agent Suitability | Not yet benchmarked | Not yet benchmarked |
| Time to First Token (TTFT) | No public TTFT data | No public TTFT data |
| Deployment Model | managed api | self hostable |
| Production Stability | Not verified | Not verified |
| API Available | Yes | Yes |
| Released Date | 2026-10-23 | 2026-10-17 |
API Pricing Comparison
Input Price per Million Tokens
Kimi K3.1 Pro
$2.00
DeepSeek V4.1 Flash 1017
$0.15
Output Price per Million Tokens
Kimi K3.1 Pro
$10.00
DeepSeek V4.1 Flash 1017
$0.60
💡 Cost Ratio: DeepSeek V4.1 Flash 1017 is 13.3x cheaper per input token than Kimi K3.1 Pro.
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Benchmark Performance Metrics
Standardized Scores (0–100%)Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.
Kimi K3.1 Pro Quirks & Gotchas
No developer gotchas reported.
DeepSeek V4.1 Flash 1017 Quirks & Gotchas
No developer gotchas reported.
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