DeepSeek V4.1 Flash
Check this calculation: 18 boxes of 12 bottles each; 47 bottles were sold. How many full boxes and loose bottles remain? Show the starting count, subtraction and a reverse-addition check. Do not round the remainder to a full box.
DeepSeek V4.1 Flash: comparison with other models
DeepSeek V4.1 Flash helps explain complex topics, review code, and compare options. Select it and continue on the web or in Telegram. Saved Flash chats work as before; V4 Pro remains a separate choice.
This comparison covers capabilities integrated into Neiron. The table does not declare a winner: choose by your source material and task constraints.
Capabilities comparison
| Model and task | Available settings | What to consider |
|---|---|---|
| DeepSeek V4.1 Flash SQL query explanation; Problem-statement review; Error-message analysis. | See the model page for modes and limitations. Unverified numerical limits are not listed here. | Check facts against sources and code changes with tests. DeepSeek web search is not enabled in Neiron. DeepSeek reports native vision for V4.1 Flash. Neiron photo analysis still uses a separate route; direct vision mode for this version is not enabled here. |
| GPT-5.6 Luna Customer reply; Brief summary of notes; Small-function explanation. | See the model page for modes and limitations. Unverified numerical limits are not listed here. | Reasoning is off by default. Web search is enabled separately and does not create another model SKU. Reasoning is off by default; web search is a separate setting. For recent information, enable search and check the cited sources. |
| Grok 4.6 Checking a news item’s context; Argument analysis; Announcement variations. | See the model page for modes and limitations. Unverified numerical limits are not listed here. | Web search and reasoning are enabled automatically in one model. Search access does not turn retrieved text into proof. Open the primary source and check that it supports the conclusion. |
How to check your own task
Write down your requirements and check each output against them. Do not confuse a model difference with different prompts, resolutions, or inputs. The examples below are test briefs, not results of tests we have run.
GPT-5.6 Luna
Shorten this email to three sentences, preserving every deadline and amount: “Hello! The invoice for 18,500 rubles is due by September 24. We will send the order for assembly within two working days after payment. Please tell us if you need to discuss the payment deadline.” No pressure or new terms.
Grok 4.6
Analyze this text: “A new service halved costs for all customers. The company surveyed 30 users and did not disclose its method.” Separate reported facts, promotional generalizations and methodological questions. Do not invent research or missing numbers.
Questions about choosing
- When should I choose V4.1 Flash?
- Use it for explanations, editing, code review, and structured analysis. Include source material, constraints, and your preferred answer format.
- Do I need a new chat or pay to switch?
- No. Saved Flash chats work as before. Selecting a model does not use quota; submitted requests use your plan’s normal text quota.
- What happened to V4 Pro?
- DeepSeek canceled the planned September 14, 2026 API retirement of V4 Pro and kept its billing unchanged. Pro remains a separate model in Neiron; saved Pro selections are not switched to Flash.