DeepSeek: DeepSeek V4.1 Flash pricing
DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. DeepSeek: DeepSeek V4.1 Flash from OpenRouter costs $0.051 per 1M input tokens and $0.567 per 1M output tokens. Cached input is $0.018 per 1M. Context window 1,048,576 tokens.
API id deepseek/deepseek-v4.1-flash · OpenRouter · source · updated 2026-11-10 · general-purpose
$0.051
Input / 1M tokens
$0.567
Output / 1M tokens
$0.018
Cached input / 1M
1M
Context window
DeepSeek: DeepSeek V4.1 Flash specifications
- Provider
- OpenRouter
- API id
deepseek/deepseek-v4.1-flash- Model type
- general-purpose
- Context window
- 1M tokens
- Max output
- 944K tokens
- Currency
- USD
- Price source
- Provider API
- Last checked
- 2026-11-10
Tags
- fast
- vision
DeepSeek V4.1 Flash across providers
The same model, priced by every seller we track. Ranked by the cost of 1M input + 1M output tokens, standard tier; savings measured against buying from the vendor directly.
| Provider | Input /1M | Cached /1M | Output /1M | 1M in + 1M out | vs vendor |
|---|---|---|---|---|---|
| $0.051 | $0.018 | $0.567 | $0.62 | — | |
| $0.051 | $0.018 | $0.567 | $0.62 | — | |
Together AIHost | $0.300 | $0.006 | $1.20 | $1.50 | +143% |
What DeepSeek: DeepSeek V4.1 Flash costs in practice
| Workload | Input tokens | Output tokens | Estimated cost |
|---|---|---|---|
| Short chat turn | 1,000 | 500 | $0.0003 |
| Document summary | 50,000 | 2,000 | $0.0037 |
| 1M tokens in, 200K out | 1,000,000 | 200,000 | $0.16 |
Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.
DeepSeek: DeepSeek V4.1 Flash price history
| Recorded | Input /1M | Output /1M |
|---|---|---|
| 2026-11-08 | $0.051 | $0.567 |
| 2026-11-06 | $0.049 | $0.540 |
| 2026-11-04 | $0.045 | $0.500 |
| 2026-10-29 | $0.045 | $0.500 |
| 2026-10-27 | $0.140 | $0.420 |
| 2026-10-24 | $0.020 | $1.00 |
| 2026-10-23 | $0.165 | $0.660 |
| 2026-10-22 | $0.300 | $1.20 |
| 2026-10-21 | $0.049 | $0.375 |
| 2026-10-20 | $0.035 | $0.011 |
| 2026-10-19 | $0.046 | $0.080 |
| 2026-10-18 | $0.065 | $0.144 |
Common questions
- How much does DeepSeek: DeepSeek V4.1 Flash cost per 1M tokens?
- DeepSeek: DeepSeek V4.1 Flash costs $0.051 per 1M input tokens and $0.567 per 1M output tokens on the standard tier. Cached input is $0.018 per 1M.
- What is DeepSeek: DeepSeek V4.1 Flash's context window?
- DeepSeek: DeepSeek V4.1 Flash accepts up to 1,048,576 tokens in a single request, and can return up to 943,718 output tokens.
- Is there a cheaper OpenRouter model than DeepSeek: DeepSeek V4.1 Flash?
- Yes. Free Models Router is free per 1M input tokens versus $0.051 for DeepSeek: DeepSeek V4.1 Flash, with a 200,000 token context window.
- Where does this DeepSeek: DeepSeek V4.1 Flash price come from?
- From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.
Head-to-head comparisons
Other OpenRouter models
- Nex AGI: Nex-N2.6 $0.120
- Thinking Machines: Inkling 2 Small (free) Free
- Anthropic: Claude Fable 5.2 $8.00
- Meta: Muse Ember $0.100
- LiquidAI: LFM3-1.7B $0.080
- LiquidAI: LFM3-1.7B (free) Free
- Google: Gemini Omni 1.2 Flash $1.50
- Google: Gemini Omni 1.1 Flash $1.50
- Ricursive: Ripple 65B Preview $0.200
- Tencent: Hy4 $0.417
- Z.ai: GLM 5.3 FlashX Legal $0.370
- Particle AI: Particle-1 $0.050
- OpenAI: GPT-6.1 Terra Pro $1.00
- OpenAI: GPT-6.1 Terra $1.00
- MoonshotAI: Kimi K3.1 Pro $2.00
- Recursive: Flint (free) Free