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DeepSeek-V4.1-Flash-1017 vs GPT-6.1 Sol: which delivered after 7 days?
Same stamp after day 7: both DeepSeek-V4.1-Flash-1017 and GPT-6.1 Sol are stamped Partly. The claim tallies below show where each one held and where it didn't.
| DeepSeek-V4.1-Flash-1017 | GPT-6.1 Sol | |
|---|---|---|
| Verdict | Partly | Partly |
| Claims held | 2 | 0 |
| Claims mixed | 2 | 3 |
| Claims failed | 0 | 0 |
| Claims unclear | 0 | 2 |
| User reports | 12 | 5 |
| Launched | 17 Oct 2026 | 29 Sept 2026 |
| Last stamped | 25 Oct 2026 | 22 Oct 2026 |
No. 008 · DeepSeek
DeepSeek-V4.1-Flash-1017
It is live and MIT-licensed as promised, but users split on whether it finishes faster and codes better; some see shorter runs, others overthinking.
- Launched
- 17 Oct 2026
- Stamped
- 25 Oct 2026
- Claims
- ✓2 held · ~2 mixed · ✗0 failed · ?0 unclear
- Reports
- 12 (4 praise · 4 problem · 4 mixed)
What they claimed
“Now live on our website, app, and API.”✓ Holds
“Stronger benchmark performance, faster task completion, and shorter outputs than the previous version”~ Mixed
“DeepSeek-V4.1-Flash-1017 uses reinforcement learning with self-feedback to improve end-to-end project development”~ Mixed
“This repository and the model weights are licensed under the MIT License.”✓ Holds
No. 004 · OpenAI
GPT-6.1 Sol
It arrived and Ultrafast followed, but 'available today' took app updates for many users, Ultrafast is limited to top plans, and some users report over-refusals.
- Launched
- 29 Sept 2026
- Stamped
- 22 Oct 2026
- Claims
- ✓0 held · ~3 mixed · ✗0 failed · ?2 unclear
- Reports
- 5 (0 praise · 3 problem · 2 mixed)
What they claimed
“GPT-6.1 Sol is available starting today to all Plus, Pro, Business, Enterprise, and Edu users in ChatGPT Work and Codex.”~ Mixed
“In the coming days, we’ll also offer GPT-6.1 Sol Ultrafast, with up to 8x faster token generation compared to its standard speed in Codex.”~ Mixed
“GPT-6.1 Sol is more transparent about its limitations and more reliable at respecting user intent and safety constraints.”~ Mixed
“We’re introducing GPT-6.1 Sol, an upgrade to GPT-6 Sol that nearly matches GPT-6 Astra’s intelligence on agentic coding, computer use, and professional work at one-fifth of Astra’s standard input and output token prices.”? Unclear
“Its standard API prices are $2 per million input tokens, $0.10 per million cached input tokens, and $10 per million output tokens.”? Unclear
Both stamps come from the public user reports linked on each receipt, under the same method. Verdicts are opinion and are never paid for.
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