DeepSeek V4.1 Flash API: AI Large Language Models

Use DeepSeek V4.1 Flash through MuAPI for multimodal reasoning, image understanding, and adjustable thinking effort. DeepSeek V4.1 Flash is a multimodal reasoning model with a 1M-token context window, image understanding, and adjustable reasoning effort.

Interactive model controls

DeepSeek V4.1 Flash is a multimodal reasoning model with a 1M-token context window, image understanding, and adjustable reasoning effort.

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Aperçu

À propos de ce modèle

DeepSeek V4.1 Flash is a fast multimodal reasoning model with a 1M-token context window, native image understanding, and configurable reasoning effort.

1Multimodal image understanding and visual question answering

2Fast reasoning, coding assistance, and long-context analysis

3Agent workflows that benefit from adjustable thinking effort

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Prix et valeur

Analyse des coûts

Fournisseur	Coût	Remarques
muapiapp	Official DeepSeek token rates; peak/off-peak and cache-sensitive	Off-peak: $0.15/M uncached input, $0.003/M cached input, $0.60/M output. Peak rates are 2×. A $0.0001 minimum reservation is reconciled after usage.

muapiappOfficial DeepSeek token rates; peak/off-peak and cache-sensitive

Off-peak: $0.15/M uncached input, $0.003/M cached input, $0.60/M output. Peak rates are 2×. A $0.0001 minimum reservation is reconciled after usage.

** Les prix des concurrents sont estimés sur la base d'architectures de modèles et de niveaux d'utilisation similaires.

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Détails techniques

Schéma de configuration

Paramètre	Taper	Description	Par défaut
invite	string	.	`Explain how a mixture-of-experts model works.`
URL de l'image	string	Optional public image URL for multimodal analysis.	`undefined`
Invite système	string	Optional system-level instruction.	`You are a careful software engineering assistant.`
Effort de raisonnement	Énumération (options 7)	Thinking effort. Omit to use the model default; none and minimal disable thinking.	`-`

invitestring

Valeur par défautExplain how a mixture-of-experts model works.

URL de l'imagestring

Optional public image URL for multimodal analysis.

Valeur par défautundefined

Invite systèmestring

Optional system-level instruction.

Valeur par défautYou are a careful software engineering assistant.

Effort de raisonnementÉnumération (options 7)

Thinking effort. Omit to use the model default; none and minimal disable thinking.

Valeur par défaut-

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Guide de mise en œuvre

Documentation du développeur

How to Use DeepSeek V4.1 Flash

Send a Prompt: Submit a POST request to /api/v1/deepseek-v4-1-flash or stream via /api/v1/deepseek-v4-1-flash/stream.
Add an Image: Optionally provide a public image_url for visual understanding.
Tune Reasoning: Set reasoning_effort to none, minimal, low, medium, high, xhigh, or max; omit it to use the model default.
Read the Result: Receive generated text or a live SSE stream.

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Questions courantes

Foire aux questions

Does DeepSeek V4.1 Flash support image input?

Yes. You can provide an optional public image URL alongside your prompt.

Can I control thinking effort?

Yes. Set `reasoning_effort` to one of the supported levels. `none` and `minimal` disable thinking.

Does DeepSeek V4.1 Flash support streaming?

Yes. Live streaming is available at `/api/v1/deepseek-v4-1-flash/stream`.