DeepSeek V4.1 Flash 1017 vs Kimi K3.1 Pro
aka DeepSeek 1017 vs Moonshot AI Kimi K3.1 Pro
- Author picksDeepSeek V4.1 Flash 10173–2
- CheaperDeepSeek V4.1 Flash 101710/10 postsmedian gap ~2.5×
- FasterEven4–4 (1 tied)
As stated in each post, not a controlled benchmark.
Posts
15Blender axe, five models side by side: GPT-6.1 Terra, GPT-6.1 Sol, Kimi K3.1 Pro, DeepSeek V4.1 Flash 1017, Gemini 4 Argon. Posted by @sshayahmet.
Fart-powered backflip, three models: Claude Opus 5.5, DeepSeek V4.1 Flash 1017, Kimi K3.1 Pro. Posted by @LatentOperatorX.
Code-only 3D campfire, three models: MiniMax M3.1 Flash, DeepSeek V4.1 Flash 1017, Kimi K3.1 Pro. Posted by @EvoLinkAi.
Erupting 3D volcano, Kimi K3.1 Pro and 3 others: Kimi K3.1 Pro, GPT-6 Astra, DeepSeek V4.1 Flash 1017, GLM 5.3 Flash. Posted by @criscxuan.
Moonwalking dancer under a spotlight: Kimi K3.1 Pro, GPT-6 Luna, DeepSeek V4.1 Flash 1017. Posted by @LatentOperatorX.
Lighthouse in a storm, one HTML file, first try: Kimi K3.1 Pro, DeepSeek V4.1 Flash 1017. Posted by @Vortlyn.
Voxel pineapple cutaway in a custom engine: Kimi K3.1 Pro, DeepSeek V4.1 Flash 1017. Posted by @NoldoDev.
Halloween grim reaper 3D model, three models: GPT-6.1 Sol, DeepSeek V4.1 Flash 1017, Kimi K3.1 Pro. Posted by @LatentOperatorX.
Floatplane over a fjord, three models: Kimi K3.1 Pro, DeepSeek V4.1 Flash 1017, MiniMax M3.1 Flash. Posted by @EnvolDev.
Interactive 3D V8 engine lab in Three.js: DeepSeek V4.1 Flash 1017, Kimi K3.1 Pro. Posted by @sai0xgen.
3D solar system, four models, one shot: Kimi K3.1 Pro, DeepSeek V4.1 Flash 1017, Claude Sonnet 5.5, Kimi K3. Posted by @nexightai.
15-second LLM showreel in code: DeepSeek V4.1 Flash 1017, Kimi K3.1 Pro. Posted by @EvoLinkAi.
Three.js Egyptian temple complex at dawn: Kimi K3.1 Pro, DeepSeek V4.1 Flash 1017. Posted by @sakatayasha.
Ant colony foraging benchmark, four models: DeepSeek V4.1 Flash 1017, MiniMax M3.1 Flash, Kimi K3.1 Pro, Muse Spark Open. Posted by @AlicanKiraz0.
Same prompt, separate runs
9Not a controlled comparison: prompts, tools and time differ.
About this matchup
DeepSeek V4.1 Flash 1017 vs Kimi K3.1 Pro in real side-by-side tests: 15 posts from X where both got the same prompt; 13 posts report cost or time. Judge coding ability from the actual outputs.
DeepSeek V4.1 Flash 1017 vs Kimi K3.1 Pro: which is better for coding?
Which is better for coding, DeepSeek V4.1 Flash 1017 or Kimi K3.1 Pro?
Author picks: where the author preferred one of the two, they picked DeepSeek V4.1 Flash 1017 3 times and Kimi K3.1 Pro twice. That covers 5 of the 15 posts here; each post is a different task, so watch the outputs above for the work you care about.
Which is cheaper, DeepSeek V4.1 Flash 1017 or Kimi K3.1 Pro?
10 posts state a cost for both: DeepSeek V4.1 Flash 1017 was cheaper in all 10 (median gap ~2.5×). These are the costs the posts state for each run, not list prices.
Which is faster, DeepSeek V4.1 Flash 1017 or Kimi K3.1 Pro?
9 posts state a time for both: each was faster in 4 (1 tied). Times are as stated in each post; tools and settings differ between posts.
Summary
DeepSeek V4.1 Flash 1017 and Kimi K3.1 Pro appear together in 15 posts on X: satellite Mesh Blackout benchmark, four models in OpenCode (@AlicanKiraz0), Blender axe, five models side by side (@sshayahmet), fart-powered backflip, three models (@LatentOperatorX), code-only 3D campfire, three models (@EvoLinkAi), erupting 3D volcano, Kimi K3.1 Pro and 3 others (@criscxuan) and 10 more. 10 of them are part of larger lineups with other models. The 5 most-viewed examples: In @AlicanKiraz0's ant colony foraging benchmark, four models, DeepSeek V4.1 Flash 1017 was cheaper ($0.172 vs $3.001), as reported in the post. In @sakatayasha's Three.js Egyptian temple complex at dawn, DeepSeek V4.1 Flash 1017 was faster (32 min vs 41 min), as reported in the post. In @LatentOperatorX's fart-powered backflip, three models, DeepSeek V4.1 Flash 1017 was cheaper ($0.05 vs $0.24) and faster (8.7 min vs 12.7 min), as reported in the post. In @EnvolDev's floatplane over a fjord, three models, DeepSeek V4.1 Flash 1017 was cheaper ($0.49 vs $24.12) and Kimi K3.1 Pro was faster (1 h 12 min vs 1 h 22 min), as reported in the post. In @AlicanKiraz0's satellite Mesh Blackout benchmark, four models in OpenCode, DeepSeek V4.1 Flash 1017 was cheaper ($0.47 vs $0.85) and faster (18.7 min vs 20.9 min), as reported in the post. The table below lists all 12 posts with numbers for both.
What each post reports
Only numbers stated in each post. “—” means the post doesn’t say.
Quick facts
| Model | Vendor | Released | Input $/1M tokens | Output $/1M tokens | Context (tokens) | Official links |
|---|---|---|---|---|---|---|
| DeepSeek V4.1 Flash 1017 | DeepSeek | 2026-10-17 | $0.30peak hours; off-peak is half price | $1.20peak hours; off-peak is half price | 1,000,000 | Release notes · Pricing |
| Kimi K3.1 Pro | Moonshot AI | 2026-10-23 | 1,000,000 | Tech blog · Announcement |
From the vendors’ official pages, checked 2026-10-24. Standard API list prices; each value links its source and a blank cell could not be verified. The archive’s own numbers above are what each post states.
Who won where
9- Fart-powered backflip, three modelsThe poster says DeepSeek almost matched Claude Opus 5.5 for 24 times less, and that Kimi K3.1 Pro disappoints again.— the author’s view, @LatentOperatorX (paraphrased)
- Erupting 3D volcano, Kimi K3.1 Pro and 3 othersThe poster says Kimi K3.1 Pro has great detail and a big jump in 3D modeling, better than Astra Max.— the author’s view, @criscxuan (paraphrased)
- Moonwalking dancer under a spotlightThe poster names Kimi K3.1 Pro the winner: slow but efficient.— the author’s view, @LatentOperatorX (paraphrased)
- Lighthouse in a storm, one HTML file, first tryThe poster calls the Kimi K3.1 Pro result garbage next to DeepSeek V4.1 Flash.— the author’s view, @Vortlyn (paraphrased)
- Floatplane over a fjord, three modelsThe poster says Kimi K3.1 Pro on Max could not beat DeepSeek V4.1 Flash on xhigh, at 49 times the price.— the author’s view, @EnvolDev (paraphrased)
- Interactive 3D V8 engine lab in Three.jsThe poster says both work; Kimi K3.1 Pro has the more polished UI and a combustion panel, DeepSeek V4.1 Flash a more detailed dyno cell.— the author’s view, @sai0xgen (paraphrased)
- 3D solar system, four models, one shotThe poster says Kimi K3.1 Pro built the most polished UI of the four and also cost the most.— the author’s view, @nexightai (paraphrased)
- 15-second LLM showreel in codeThe poster calls DeepSeek V4.1 Flash 1017 the budget pick and says Kimi K3.1 Pro has bolder type, richer colors and more scene variety.— the author’s view, @EvoLinkAi (paraphrased)
- Ant colony foraging benchmark, four modelsThe poster ranks DeepSeek V4.1 Flash 1017 first overall; Muse Spark Open made 0 deliveries across all four seeds.— the author’s view, @AlicanKiraz0 (paraphrased)
































