DeepSeek-V4.1-Flash
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Language modelActive
DeepSeek-V4.1-Flash
DeepSeek
- Released
- September 10, 2026
- Data date
- September 22, 2026
- Predecessor
- DeepSeek-V4-Flash
- Intelligence
- Overall score
- Price
- Input · Output / 1M tokens (Off-Peak)
- Input
- Text, Image
- Output
- Text
No published category-wide ranking is available for this model.
No unambiguously attributed benchmark results have been recorded for this model yet.
Our model tests
Our tests
Compare how the models respond to the same prompt. Each test shows the first attempt, with no subsequent fixes to the generated code. These results do not contribute to an overall score.
Pelican on a bicycle
A community classic for free-form SVG drawing.
Prompt and test conditions
Generate an SVG of a pelican riding a bicycle
Token limit including reasoning: 8,192 tokens
Task origin (Simon Willison)Profile
Specifications and access
Published information about this model. Existing estimates are explicitly labeled.
Dated documentation and model-card observations. Provider limits, native context and extended context can differ. Configuration notes retain the source wording.
| Specification | Value and source |
|---|---|
| Weights | Open weightsSource |
| Access | APISource |
| Parameters | 552BSource |
| Context window | 1,000,000 tokensSource |
| Notes | 552B total, 8B active during input prefill and 16B during output decoding, 1M context, multimodal and MIT-licensedSource |
| License | MITSource |
| Parameters | 552 BSource |
| Active input parameters | 8 BSource |
| Active output parameters | 16 BSource |
| Architecture | Multimodal MoE with Causal Encoder-Decoder architectureSource |
| Training tokens | 45TSource |
| Input | Text, ImageSource |
| Output | TextSource |
| Reasoning effort | 1-100Source |
| Tool calling | YesSource |
| API model ID | deepseek-flashSource |
Pricing
Published prices
Prices apply to the stated unit. Resolution, output length, and provider can change the cost.
- API input (Off-Peak)
- $0.15 per 1M tokensSource
- API output (Off-Peak)
- $0.6 per 1M tokensSource
- Cache read (Off-Peak)
- $0.003 per 1M tokensSource
- Peak hours (UTC)
- Mon, Tue, Wed, Thu, Fri, 01:00-04:00 UTC; Mon, Tue, Wed, Thu, Fri, 06:00-10:00 UTC. Off-peak rates apply at all other times.Source
- API input (Peak)
- $0.3 per 1M tokensSource
- API output (Peak)
- $1.2 per 1M tokensSource
- Cache read (Peak)
- $0.006 per 1M tokensSource
Head-to-head comparisons
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Predecessor and successor
Every relationship names its kind, its qualification and the dated source it rests on.
Evidence
Sources and data date
Every statement links to its underlying documentation or leaderboard.
| Type | Evidence and data date |
|---|---|
| Price | Off-peak API prices. Higher rates apply during the provider's peak hours. All rates and the UTC schedule are listed under Costs. |
| Input | Documented modalities. Retrieved September 22, 2026. |
| Output | Documented modalities. Retrieved September 22, 2026. |
| Research status | Research date September 22, 2026. 4 source URLs checked. This documents the inspected sources, not an exhaustive inventory of every publication. |
| Not found in the inspected sources | independent-benchmarks Original wording No independently retrieved, exact-model benchmark observation was added. Vendor-reported V4.1 tables remain separate from the retired V4 Flash results. |
| Additional source | Model metadata (retrieved September 22, 2026) |
| Additional source | DeepSeek-V4.1-Flash release (2026-09-22) |