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deepseek-v4-flash API pricing & access

deepseek-v4-flash API pricing: Dynamic usage-based pricing. deepseek-v4-flash. Supports text input and text output. Listed specifications follow publi…

deepseek-v4-flash API access

deepseek-v4-flash. Supports text input and text output. Listed specifications follow public vendor documentation. Available features and limits depend on the selected serving channel.

Compare supported API endpoints and capabilities, then access deepseek-v4-flash through the unified API gateway.

Category: text
Context length: 1000000 tokens
Maximum output: 384000 tokens
Supported APIs: OpenAI Chat Completions API, Anthropic Messages API
API endpoints: POST /v1/chat/completions, POST /v1/messages
Input modalities: text
Output modalities: text
Capabilities: reasoning, function calling, json mode, caching

deepseek-v4-flash API pricing

Billing model: Dynamic usage-based pricing

The final API price depends on the matched usage tier, request parameters and access group. Open the live pricing page for the current calculation.

About deepseek-v4-flash

This DeepSeek V4 Flash page preserves the existing catalog ID for comparing text, coding and reasoning routes. DeepSeek’s September 2026 update says its own API temporarily redirects the legacy deepseek-v4-flash name to V4.1 Flash; that does not prove that every third-party or hosted route here changed with it.

Check the selected channel, endpoint and response to establish the serving version. The Flash name alone does not establish image support, pricing or equivalence with V4.1.

Official reference, checked 2026-10-14.

Use cases and prompting

Keep the existing catalog ID while testing fixed text and code cases; retain failures and actual billing evidence.
For V4.1 or image understanding, select an explicit version and route instead of assuming an automatic alias upgrade.
Validate accepted tool, reasoning and streaming fields, then rerun the same application regressions after migration.
See V4.1 Flash, V4 Pro and the integration guide.

How to call deepseek-v4-flash

deepseek-v4-flash is served through tbuy's unified gateway. Existing OpenAI or Anthropic SDK code keeps working: point base_url at https://modelsok.com and use your tbuy API key.

curl (OpenAI-compatible)

curl https://modelsok.com/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "deepseek-v4-flash", "messages": [{"role": "user", "content": "Hello"}]}'

Python (openai SDK)

from openai import OpenAI

client = OpenAI(base_url="https://modelsok.com/v1", api_key="YOUR_API_KEY")
response = client.chat.completions.create(
    model="deepseek-v4-flash",
    messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)

Python (anthropic SDK)

from anthropic import Anthropic

client = Anthropic(base_url="https://modelsok.com", api_key="YOUR_API_KEY")
message = client.messages.create(
    model="deepseek-v4-flash",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello"}],
)
print(message.content[0].text)

Frequently asked questions about deepseek-v4-flash

What is deepseek-v4-flash?

deepseek-v4-flash. Supports text input and text output. Listed specifications follow public vendor documentation. Available features and limits depend on the selected serving channel.

How do I call deepseek-v4-flash?

Create an API key with access to deepseek-v4-flash, then use the exact model ID and a supported endpoint from the API access section. Request fields depend on the selected endpoint.

How is deepseek-v4-flash priced?

Pricing depends on the selected provider group and the model billing unit. Refer to the current input, output, request, or media prices in the pricing section.

What is the context window of deepseek-v4-flash?

The model catalog lists a context window of 1000000 tokens. Check the selected endpoint for request limits.

What is the maximum output of deepseek-v4-flash?

The model catalog lists a maximum output of 384000 tokens. Your request settings may set a lower limit.

How should I evaluate deepseek-v4-flash for my project?

Start with the use cases and prompting guidance on this page, then evaluate the model with representative inputs from your project.

Back to AI model API pricing