DeepSeek V4.1 Flash 1017 vs GPT-6.1 Terra
aka DeepSeek 1017 vs OpenAI GPT-6.1 Terra
- Author picksGPT-6.1 Terra4–3
- CheaperDeepSeek V4.1 Flash 10179/14 postsmedian gap ~1.8×
- FasterGPT-6.1 Terra16/17 postsmedian gap ~5.8×
As stated in each post, not a controlled benchmark.
Posts
31Satellite Mesh Blackout benchmark, four models in OpenCode: DeepSeek V4.1 Flash 1017, MiniMax M3.1 Flash, Kimi K3.1 Pro, GPT-6.1 Terra. Posted by @AlicanKiraz0.
Cheetah sprint, GPT-6.1 Terra vs DeepSeek V4.1 Flash 1017: GPT-6.1 Terra, DeepSeek V4.1 Flash 1017. Posted by @LatentOperatorX.
Fake Genie 4 walkable world in one HTML file: GPT-6.1 Terra, Claude Opus 5.5, DeepSeek V4.1 Flash 1017, Muse Wonder 1.0. Posted by @maker_evan.
Rainy city at night, DeepSeek vs GPT-6.1 Terra: DeepSeek V4.1 Flash 1017, GPT-6.1 Terra. Posted by @LatentOperatorX.
Black hole render, DeepSeek 1017 vs Terra xHigh: DeepSeek V4.1 Flash 1017, GPT-6.1 Terra. Posted by @filicroval.
Tank ambush scene, four affordable models: GPT-6.1 Terra, Gemini 4 Argon, DeepSeek V4.1 Flash 1017, Muse Wonder 1.0. Posted by @RafaCrackYT.
Cinematic cruise ship at sea, three models: DeepSeek V4.1 Flash 1017, Claude Sonnet 5.5, GPT-6.1 Terra. Posted by @jpshrodinger.
Bionic nautilus sim, four models one prompt: GPT-6.1 Terra, Claude Opus 5.5, DeepSeek V4.1 Flash 1017, Muse Wonder 1.0. Posted by @maker_evan.
Photoreal human eye in the browser, four models: GPT-6.1 Terra, Claude Opus 5.5, DeepSeek V4.1 Flash 1017, Muse Wonder 1.0. Posted by @maker_evan.
Pixel-art shiba in snowy Tokyo, four models: GPT-6.1 Terra, DeepSeek V4.1 Flash 1017, Claude Opus 5.5, Muse Wonder 1.0. Posted by @maker_evan.
Complete 3D house render, three models: GPT-6.1 Sol, GPT-6.1 Terra, DeepSeek V4.1 Flash 1017. Posted by @sshayahmet.
Raccoon animation, GPT-6.1 Terra vs DeepSeek V4.1 Flash 1017: GPT-6.1 Terra, DeepSeek V4.1 Flash 1017. Posted by @LatentOperatorX.
FawnBench running deer, four budget models: MiniMax M3.1 Flash, Claude Haiku 5.5, DeepSeek V4.1 Flash 1017, GPT-6.1 Terra. Posted by @fawnunwrap.
DeepSeek V4.1 Flash Max vs GPT-6.1 Terra Ultra: DeepSeek V4.1 Flash 1017, GPT-6.1 Terra. Posted by @SPAC89.
3D car from scratch in Three.js and WebGL: GPT-6.1 Terra, DeepSeek V4.1 Flash 1017. Posted by @aiZttt__.
3D block-tower destruction, three models: GPT-6.1 Sol, GPT-6.1 Terra, DeepSeek V4.1 Flash 1017. Posted by @LatentOperatorX.
Pixel Hello Kitty walk cycle, four models: GPT-6.1 Terra, DeepSeek V4.1 Flash 1017, GPT-6.1 Sol, Muse Wonder 1.0. Posted by @ann_nnng.
3D pelican bike ride by the sea, three models: GPT-6.1 Terra, GPT-6.1 Sol, DeepSeek V4.1 Flash 1017. Posted by @YxzRainy.
Island house, GPT-6.1 Terra vs DeepSeek V4.1 Flash 1017: GPT-6.1 Terra, DeepSeek V4.1 Flash 1017. Posted by @ying_shaoAIR.
Steam engine, GPT-6.1 Terra vs DeepSeek V4.1 Flash 1017: GPT-6.1 Terra, DeepSeek V4.1 Flash 1017. Posted by @ying_shaoAIR.
Cartoon bicycle ride, three models: GPT-6.1 Terra, DeepSeek V4.1 Flash 1017, Claude Opus 5.5. Posted by @_ninetyhe.
Stormlit ocean lighthouse, two models scored: DeepSeek V4.1 Flash 1017, GPT-6.1 Terra. Posted by @icoretech_inc.
Mario level, GPT-6.1 Terra vs DeepSeek V4.1 Flash 1017: GPT-6.1 Terra, DeepSeek V4.1 Flash 1017. Posted by @benchmark_lb900.
Pelican club night ride SVG, two models: GPT-6.1 Terra, DeepSeek V4.1 Flash 1017. Posted by @mspd4100.
Blender 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.
Pelican SVG with GPT-6.1 Terra at two effort levels: GPT-6.1 Terra, DeepSeek V4.1 Flash 1017, Claude Sonnet 5.5. Posted by @xiangxiang103.
Blender axe, GPT-6.1 Terra vs DeepSeek V4.1 Flash 1017: GPT-6.1 Terra, DeepSeek V4.1 Flash 1017. Posted by @sshayahmet.
Golden Ballon d’Or trophy, three models: GPT-6.1 Terra, DeepSeek V4.1 Flash 1017, Muse Spark 1.3. Posted by @LatentOperatorX.
Interstellar black hole in three.js, DeepSeek vs Terra: DeepSeek V4.1 Flash 1017, GPT-6.1 Terra. Posted by @Vortlyn.
Dragon attacking a medieval castle, Terra vs DeepSeek: GPT-6.1 Terra, DeepSeek V4.1 Flash 1017. Posted by @LatentOperatorX.
Same prompt, separate runs
8Not a controlled comparison: prompts, tools and time differ.
FawnBench (3D deer)
About this matchup
DeepSeek V4.1 Flash 1017 vs GPT-6.1 Terra in real side-by-side tests: 31 posts from X where both got the same prompt; 22 posts report cost or time. Judge coding ability from the actual outputs.
DeepSeek V4.1 Flash 1017 vs GPT-6.1 Terra: which is better for coding?
Which is better for coding, DeepSeek V4.1 Flash 1017 or GPT-6.1 Terra?
Author picks: where the author preferred one of the two, they picked GPT-6.1 Terra 4 times and DeepSeek V4.1 Flash 1017 3 times. That covers 7 of the 31 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 GPT-6.1 Terra?
14 posts state a cost for both: DeepSeek V4.1 Flash 1017 was cheaper in 9; GPT-6.1 Terra in 5 (median gap ~1.8×). These are the costs the posts state for each run, not list prices.
Which is faster, DeepSeek V4.1 Flash 1017 or GPT-6.1 Terra?
17 posts state a time for both: GPT-6.1 Terra was faster in 16; DeepSeek V4.1 Flash 1017 in 1 (median gap ~5.8×). Times are as stated in each post; tools and settings differ between posts.
Summary
DeepSeek V4.1 Flash 1017 and GPT-6.1 Terra appear together in 31 posts on X: voxel bike, DeepSeek V4.1 Flash 1017 vs GPT-6.1 Terra (@filicroval), satellite Mesh Blackout benchmark, four models in OpenCode (@AlicanKiraz0), cheetah sprint, GPT-6.1 Terra vs DeepSeek V4.1 Flash 1017 (@LatentOperatorX), fake Genie 4 walkable world in one HTML file (@maker_evan), rainy city at night, DeepSeek vs GPT-6.1 Terra (@LatentOperatorX) and 26 more. 16 of them are part of larger lineups with other models. The 5 most-viewed examples: In @YxzRainy's 3D pelican bike ride by the sea, three models, GPT-6.1 Terra was faster (7.5 min vs 1 h 16 min) and used fewer tokens (5.3M tokens vs 69.1M tokens), as reported in the post. In @Vortlyn's Interstellar black hole in three.js, DeepSeek vs Terra, DeepSeek V4.1 Flash 1017 was cheaper ($0.17 vs $0.18) and GPT-6.1 Terra was faster (2.5 min vs 34 min), as reported in the post. In @AlicanKiraz0's satellite Mesh Blackout benchmark, four models in OpenCode, GPT-6.1 Terra was cheaper ($0.42 vs $0.47) and faster (10.9 min vs 18.7 min), as reported in the post. In @LatentOperatorX's raccoon animation, GPT-6.1 Terra vs DeepSeek V4.1 Flash 1017, DeepSeek V4.1 Flash 1017 was cheaper ($0.06 vs $1.13) and GPT-6.1 Terra was faster (11.7 min vs 15.3 min), as reported in the post. In @LatentOperatorX's dragon attacking a medieval castle, Terra vs DeepSeek, DeepSeek V4.1 Flash 1017 was cheaper ($0.05 vs $0.61) and GPT-6.1 Terra was faster (7.4 min vs 8.4 min), as reported in the post. The table below lists all 18 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 |
| GPT-6.1 Terra | OpenAI | 2026-10-26 | Announcement |
From the vendors’ official pages, checked 2026-10-26. 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
8- Black hole render, DeepSeek 1017 vs Terra xHighThe poster says DeepSeek clearly beat Terra, even after two more tries for Terra.— the author’s view, @filicroval (paraphrased)
- Tank ambush scene, four affordable modelsThe poster says GPT-6.1 Terra came out pretty solid.— the author’s view, @RafaCrackYT (paraphrased)
- Pixel Hello Kitty walk cycle, four modelsThe poster applauds GPT-6.1 Terra for being very fast and cheap, with work that is actually good.— the author’s view, @ann_nnng (paraphrased)
- Island house, GPT-6.1 Terra vs DeepSeek V4.1 Flash 1017The poster says DeepSeek still looks stronger, just slower.— the author’s view, @ying_shaoAIR (paraphrased)
- Cartoon bicycle ride, three modelsThe poster feels GPT-6.1 Terra did the best of the three.— the author’s view, @_ninetyhe (paraphrased)
- Mario level, GPT-6.1 Terra vs DeepSeek V4.1 Flash 1017The poster says the GPT-6.1 Terra one looks better than DeepSeek and might be worth it given GPT's usage limits.— the author’s view, @benchmark_lb900 (paraphrased)
- Pelican SVG with GPT-6.1 Terra at two effort levelsThe poster says the fast Terra is not pretty, the detailed Sonnet is too slow, and DeepSeek sits in the middle: fast and detailed.— the author’s view, @xiangxiang103 (paraphrased)
- Blender axe, GPT-6.1 Terra vs DeepSeek V4.1 Flash 1017The poster prefers Terra's axe and says it was roughly 6× faster in these runs.— the author’s view, @sshayahmet (paraphrased)
Prompts shown in the posts
Generate an animated SVG of a pelican riding a bicycle — @xiangxiang103












































