Model vs model
Gemini 3.8 Flash vs DeepSeek V4.1 Flash
Gemini 3.8 Flash and DeepSeek V4.1 Flash are both in llmwise. What each gets on every plan, what it reads, how it's served and what happens when its provider fails, from the catalog and the code that runs them.
Model prices and specs checked against OpenRouter's Gemini 3.8 Flash page, OpenRouter's DeepSeek V4.1 Flash page.
Short answer
DeepSeek V4.1 Flash is an everyday model (60 messages a day on Pro); Gemini 3.8 Flash draws on the monthly allowance (up to 250 messages a month on Pro). Otherwise, only Gemini 3.8 Flash reads a PDF as the whole file.
Gemini 3.8 Flash and DeepSeek V4.1 Flash on every plan
Whether the one-time free trial reaches each model, then each paid plan's messages on it.
| Plan | Price | Gemini 3.8 Flash | DeepSeek V4.1 Flash |
|---|---|---|---|
| Free | $0 | In the one-time trial of 5 messages | In the one-time trial of 5 messages |
| Pro | $20 a month | Up to 250 a month | 60 a day |
| Max | $50 a month | Up to 800 a month | 120 a day |
| Ultra | $100 a month | Up to 1,800 a month | 200 a day |
| Studio | $200 a month | Up to 4,000 a month | 200 a day |
Prices don't include tax, which is added where it applies and shown before you pay. A paid plan's month is one allowance shared by every model, so each monthly count is the most you get if all of it goes to that model. It renews each billing period; everyday models refill daily at 00:00 UTC. Long chats count more per reply. How pricing works.
Every limit is published. Paid plans also have a monthly fair-use limit on AI cost: Pro $7.50, Max $20, Ultra $42, Studio $85. Using every message on your plan at typical sizes stays under it; very large messages and heavy research use it faster. Every limit, explained.
What differs
Messages on Pro
DeepSeek V4.1 Flash is an everyday model (60 messages a day on Pro); Gemini 3.8 Flash draws on the monthly allowance (up to 250 messages a month on Pro).
Context window
Both take up to 1.05M tokens of context. A chat in llmwise holds up to 200k tokens, which fits in either, so the difference shows only through each maker's own API.
Images and PDFs
Both read images. DeepSeek V4.1 Flash gets a PDF's text rather than the file itself.
On Free
Both are in the free trial.
Where messages go
Gemini 3.8 Flash: Sent to Google directly. DeepSeek V4.1 Flash: Served through OpenRouter, only by hosts that don't store or train on prompts. The maker's own endpoint is never asked.
Fact by fact
| Fact | Gemini 3.8 Flash | DeepSeek V4.1 Flash |
|---|---|---|
| Context window | 1.05M tokens | 1.05M tokens |
| Reads images | Yes | Yes |
| PDFs | Whole file | Text only |
| Reasoning | Yes | Yes |
| API price (September 2026) | $0.75 in / $3.75 out per million tokens | $0.17 in / $0.60 out per million tokens |
| A typical message at API prices (4,000 tokens in, 700 out) | $0.0056 | $0.0011 |
| A $10 top-up adds | 200 messages | Nothing: an everyday model's count is daily |
| Where a message goes | Sent to Google directly. | Served through OpenRouter, only by hosts that don't store or train on prompts. The maker's own endpoint is never asked. |
| If the provider fails | If Google fails before the reply starts (an overload, a server error, a dropped connection), llmwise sends the same request to Gemini 3.8 Flash through OpenRouter instead. | When one host is down, OpenRouter moves the request to another host that meets the same rules. |
| Anthropic's safety fallback | Doesn't apply | Doesn't apply |
Gemini 3.8 Flash or DeepSeek V4.1 Flash?
From the facts above, not from benchmarks: the rest is how their answers suit your work, which one chat can show you.
Pick Gemini 3.8 Flash: it reads a PDF as the whole file, charts and scans included.
Pick DeepSeek V4.1 Flash: its messages come from the daily count (60 messages a day on Pro), so they leave the monthly allowance for bigger models.
Try Gemini 3.8 Flash and DeepSeek V4.1 Flash on your own question
Start a chat on Gemini 3.8 Flash and ask a real question from your work, with any files it needs.
Switch the model picker to DeepSeek V4.1 Flash and ask for its answer to the same question. It sees the whole chat, including Gemini 3.8 Flash's answer.
Compare the two on what matters to you: accuracy, tone, length, how much you'd have to fix. If it's close, ask each a follow-up.
The badge by each model in the picker shows what a message uses before you send it.
Each model's page, the families, and other pairs
Gemini 3.8 Flash vs DeepSeek V4.1 Flash is one pair of models. The page below covers the whole families.
- Gemini 3.8 Flash: price, limits and messages on every plan
- DeepSeek V4.1 Flash: price, limits and messages on every plan
- DeepSeek vs Gemini
- GPT-6 Luna vs DeepSeek V4.1 Flash
- Every model-vs-model page
Gemini 3.8 Flash is a Gemini model; DeepSeek V4.1 Flash is a DeepSeek model.
Questions
Is Gemini 3.8 Flash or DeepSeek V4.1 Flash cheaper in llmwise?
DeepSeek V4.1 Flash is an everyday model (60 messages a day on Pro); Gemini 3.8 Flash draws on the monthly allowance (up to 250 messages a month on Pro). Every paid plan's monthly allowance is shared by all models, so each count is the most you get if it all goes to that model.
Can I try Gemini 3.8 Flash and DeepSeek V4.1 Flash for free?
Yes: both are in the free trial of 5 messages.
Which has the bigger context window, Gemini 3.8 Flash or DeepSeek V4.1 Flash?
Neither: both take 1.05M tokens. A chat in llmwise holds up to 200k tokens, which fits in either, so the difference shows only through each maker's own API.
Can I use Gemini 3.8 Flash and DeepSeek V4.1 Flash in the same chat?
Yes. Pick Gemini 3.8 Flash for one message and DeepSeek V4.1 Flash for the next; the second sees the whole chat, including the first one's answer.
Claude, GPT, Gemini, DeepSeek, Grok, Kimi, and GLM, in one chat.
See what a message costs before you send it. Free is 5 messages to try; sign in with an email link, no password or card.