DeepSeek-V4.1-Flash Hyper Chat

Overview

DeepSeek-V4.1-Flash is a multimodal mixture-of-experts model built on an asymmetric Causal Encoder–Decoder architecture, with native visual understanding. It supports a 1M-token context window, up to 384K output tokens, thinking and non-thinking modes, tool calls, and structured JSON output. Tuned for short-context chat applications rather than coding agents.

Property	Value
Provider	DeepSeek
Slug	`deepseek-v4-1-flash-hyper-chat`
Context	1,000,000 tokens
Max output	384,000 tokens
Input	text, image
Output	text
Release	2026-09-13
Tags	fast, budget, dedicated

Capabilities

text
tool-calling
function-calling
structured-outputs
json-mode
streaming
reasoning
code-generation
long-context
multilingual
vision
image-input
multimodal

Pricing

Item	Price
Input (prompt)	—
Output (completion)	—
Cache read	—
Cache write	—

Prices are customer prices per 1M tokens for a Hostlinku API key, with 1 = $1. Actual cost per request follows the API key’s Service Mode and may change; check Console or GET /v1/models for current values.

Supported endpoints

Endpoint	Format	Support
`POST /v1/chat/completions`	OpenAI Chat Completions	available
`POST /v1/messages`	Anthropic Messages	adapted (bridge)
`POST /v1/responses`	OpenAI Responses	adapted (bridge)

Endpoint and model availability follow the catalog and the API key’s Service Mode. If a model is unavailable for that mode, the request may be rejected with 400 MODEL_NOT_IN_SERVICE_MODE.

Example request

curl https://api.hostlinku.com/v1/chat/completions \
  -H "Authorization: Bearer sk-isi-api-key-kamu" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v4-1-flash-hyper-chat",
    "messages": [{ "role": "user", "content": "Hello!" }]
  }'

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Overview

Capabilities

Pricing

Supported endpoints

Example request

Related models