$ diff deepseek-v4-1-flash gemini-3-8-flash
DeepSeek V4.1-Flash vs Gemini 3.8 Flash
Values come from DeepSeek V4.1-Flash and Gemini 3.8 Flash, where each is cited to its source. This page states no benchmark result and ranks neither model — it puts two published specifications next to each other. Where a lab has not published a figure, the row says so rather than guessing.
DeepSeekDeepSeek V4.1-Flash
- context
- 1M
- weights
- open
- $/M in
- $0.15
- $/M out
- $0.6
- context
- 1.0M
- weights
- closed
- $/M in
- $0.75
- $/M out
- $3.75
What actually differs
- Context window
- Gemini 3.8 Flash takes 1.0M against 1M — modestly more room in a single request.
- Input price
- DeepSeek V4.1-Flash at $0.15/M against $0.75/M — 5.0× cheaper to feed. Standard rates: one of these labs also quotes a lower cached-input tier, which applies only when a prefix is reused — see the full spec below.
- Output price
- DeepSeek V4.1-Flash at $0.6/M against $3.75/M — 6.3× cheaper to generate. Output dominates the bill on most agentic workloads, where the model writes far more than it reads.
- Weights
- DeepSeek V4.1-Flash publishes weights (MIT (open-weight)); Gemini 3.8 Flash is API-only. That decides self-hosting, air-gapped deployment and fine-tuning before any capability question does.
- Recency
- DeepSeek V4.1-Flash shipped 8 days after Gemini 3.8 Flash (2026-09-10 vs 2026-09-02).
Full spec
| Attribute | DeepSeek V4.1-Flash | Gemini 3.8 Flash |
|---|---|---|
| Developer | DeepSeek | Google DeepMind |
| Released | 2026-09-10 | 2026-09-02 |
| Context window | 1,000,000 | 1,048,576 tokens (65,536 max output) |
| Pricing | $0.15/M input (cache miss) · $0.003/M input (cache hit) · $0.60/M output, off-peak; peak rates double — see Pricing | $0.75/M input · $3.75/M output (introductory, through 2026-12-31) · $1.50/M · $7.50/M from 2027-01-01 |
| License | MIT (open-weight) | proprietary |
| Availability | DeepSeek API, Hugging Face (`deepseek-ai/DeepSeek-V4.1-Flash`) | Gemini API, Google AI Studio, Antigravity, Android Studio, Gemini Enterprise / Gemini Enterprise Agent Platform |