Using DeepSeek V4 Flash 0731 on Fireworks AI
Implementation guide · DeepSeek V4 · DeepSeek
Fireworks AI exposes DeepSeek V4 Flash 0731 through model ID accounts/fireworks/models/deepseek-v4-flash-0731. Use the setup steps, capabilities, and official provider links below to validate this route before deployment.
Last refreshed 2026-10-19. Next refresh: weekly.
Quick Start
- 1
- 2Use the Fireworks AI SDK or REST API to call
accounts/fireworks/models/deepseek-v4-flash-0731— see the documentation for request format.
Code Examples
pip install openaiFIREWORKS_API_KEYaccounts/fireworks/models/deepseek-v4-flash-0731Fireworks model IDs use "accounts/fireworks/models/{model-name}" format, e.g. "accounts/fireworks/models/llama4-scout-instruct-basic" or "accounts/fireworks/models/deepseek-r1".
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["FIREWORKS_API_KEY"],
base_url="https://api.fireworks.ai/inference/v1"
)
response = client.chat.completions.create(
model="accounts/fireworks/models/deepseek-v4-flash-0731",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Capabilities
About DeepSeek V4 Flash 0731
DeepSeek V4 Flash 0731 is the official (post-preview) DeepSeek V4 Flash release, launched on the DeepSeek API in public beta on 2026-07-31 with upgraded agent capabilities. DeepSeek says it keeps the same architecture and size as the April preview. MIT-licensed open weights are on Hugging Face as DeepSeek-V4-Flash-0731.