DeepSeek V4 Flash (free)
DeepSeek DeepSeek V4 Flash (free) — pricing, 1049k context window, API cost calculator and alternatives.
By DeepSeek
Specs
- Provider
- DeepSeek
- Slug
- deepseek/deepseek-v4-flash-free
- Capabilities
- tools
Pricing freshness
- Tier
- standard
- Currency
- USD
- As of
- 2026-05-14 00:17 UTC
Pricing history
Tracking DeepSeek V4 Flash (free) pricing since 2026-05-14. We'll plot the chart here once it changes.
Quickstart — call DeepSeek V4 Flash (free) from your app
curl https://api.deepseek.com/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $DEEPSEEK_API_KEY" \
-d '{
"model": "deepseek-v4-flash-free",
"messages": [{"role": "user", "content": "Hello!"}]
}'Official docs: https://api-docs.deepseek.com/
# pip install openai
from openai import OpenAI
client = OpenAI(
base_url="https://api.deepseek.com/v1",
api_key=os.environ["DEEPSEEK_API_KEY"],
)
resp = client.chat.completions.create(
model="deepseek-v4-flash-free",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)Official docs: https://api-docs.deepseek.com/
// npm install openai
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.deepseek.com/v1",
apiKey: process.env.DEEPSEEK_API_KEY,
});
const resp = await client.chat.completions.create({
model: "deepseek-v4-flash-free",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(resp.choices[0].message.content);Official docs: https://api-docs.deepseek.com/
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Frequently asked questions
What is DeepSeek V4 Flash (free)?
DeepSeek V4 Flash (free) is a large language model API from DeepSeek with a 1M-token context window. It costs $0 per 1M input tokens and $0 per 1M output tokens.
How much does DeepSeek V4 Flash (free) cost?
DeepSeek V4 Flash (free) is priced at $0 per 1M input tokens and $0 per 1M output tokens via the DeepSeek API. A 50/50 input/output workload of 1M total tokens costs about $0.
What is the context window of DeepSeek V4 Flash (free)?
DeepSeek V4 Flash (free) supports up to 1M tokens of context per request — roughly 2097 pages of English text or 131072 lines of code at a typical density.
Does DeepSeek V4 Flash (free) support vision, tool use, or JSON mode?
DeepSeek V4 Flash (free) supports tool/function calling. It does not support image input (vision) and structured JSON mode.
Who makes DeepSeek V4 Flash (free)?
DeepSeek V4 Flash (free) is built and operated by DeepSeek. Pricing, context window, and capabilities on this page are refreshed nightly from DeepSeek's public catalog.
Can I self-host DeepSeek V4 Flash (free)?
DeepSeek V4 Flash (free) is API-only — its weights are not publicly distributed by DeepSeek, so it cannot be self-hosted today.