Unofficial page — not affiliated with or endorsed by DeepSeek, Google. Chat answers are AI-generated and may be wrong.
DeepSeek, Google · The makers’ own facts
DeepSeek V4.1 Flash vs Gemini 4 Carbon (2026)
DeepSeek V4.1 Flash costs $0.30 / $1.20 per million input / output tokens at peak, against $2 / $10 for Gemini 4 Carbon until November 30, 2026 and $4 / $20 from December 1, and both have a 1M-token context.
Per million tokens
Price per million tokens
| - | Input | Output | OpenRouter id |
|---|---|---|---|
| DeepSeek V4.1 Flash | $0.3 | $1.2 | deepseek/deepseek-v4.1-flash-1017 |
| Gemini 4 Carbon | $2 | $10 | google/gemini-4-carbon |
The makers’ own facts
Side by side
| - | DeepSeek V4.1 Flash | Gemini 4 Carbon |
|---|---|---|
| Released | September 10, 2026Source: api-docs.deepseek.com · checked 2026-11-11 | Generally available in the Gemini API on November 10, 2026 (announced October 28 for a subset of cyber defenders)Source: aistudio.google.com · checked 2026-11-11 |
| Maker’s price per 1M tokens (input / output) | $0.30 / $1.20 at peak, $0.15 / $0.60 off-peak (cache miss)Source: api-docs.deepseek.com · checked 2026-11-11 | $2 / $10 until November 30, 2026; $4 / $20 from December 1, 2026; no free tierSource: aistudio.google.com · checked 2026-11-11 |
| Via OpenRouter (input / output) | $0.30 / $1.20 on Together or Fireworks (the hosts the chat uses)Source: openrouter.ai · checked 2026-11-11 | $2 / $10 (whether OpenRouter follows the December 1 change is not confirmed)Source: openrouter.ai · checked 2026-11-11 |
| Context / max output | 1M / 384K tokensSource: api-docs.deepseek.com · checked 2026-11-11 | 1M tokens, input and output combinedSource: deepmind.google · checked 2026-11-11 |
| Input | Text and images (native image understanding)Source: api-docs.deepseek.com · checked 2026-11-11 | Text, images, audio, video and files; output text onlySource: deepmind.google · checked 2026-11-11 |
| API id (maker) | deepseek-flash (served by the V4.1-Flash-1017 snapshot)Source: api-docs.deepseek.com · checked 2026-11-11 | gemini-4-carbonSource: aistudio.google.com · checked 2026-11-11 |
| What the maker says | The smallest model of DeepSeek’s new architecture family; 552B total parameters, about 8B active for input and 16B for outputSource: api-docs.deepseek.com · checked 2026-11-11 | For multi-step coding, scientific research, knowledge work and cyber defenseSource: deepmind.google · checked 2026-11-11 |
Sample answers (AI-generated)
Same question, both models
Sample answers are pending: they have not been generated yet.
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Chat
The chat starts with DeepSeek V4.1 Flash; switch to Gemini 4 Carbon in the model list to ask it the same thing.
FAQ
Questions
Which is cheaper, DeepSeek V4.1 Flash or Gemini 4 Carbon?
DeepSeek V4.1 Flash: $0.30 / $1.20 per million input / output tokens at peak ($0.15 / $0.60 off-peak). Gemini 4 Carbon is $2 / $10 until November 30, 2026 and $4 / $20 from December 1.
Which one is newer?
Gemini 4 Carbon: generally available in the Gemini API on November 10, 2026. DeepSeek released V4.1-Flash on September 10, 2026.
Do they have the same context window?
Both list 1M tokens. DeepSeek gives up to 384K output tokens; Google’s model card counts input and output together in the 1M.
What can each one read?
DeepSeek V4.1 Flash takes text and images. Gemini 4 Carbon takes text, images, audio, video and files. Both answer in text.
Why are there no benchmark scores here?
We only list facts from the makers’ own pages and OpenRouter’s list that we have read. Neither maker compares these two models.
Is this an official DeepSeek or Google page?
No. This page is unofficial and not affiliated with or endorsed by DeepSeek or Google. Every fact links to its source.