Last refreshed 2026-10-19. Next refresh: weekly.
Why use DeepSeek V4 Flash 0731 on Vercel AI Gateway?
Vercel AI Gateway offers DeepSeek V4 Flash 0731 with pay-as-you-go pricing at $0.08/1M input tokens. Vercel AI Gateway is a unified AI proxy providing a single OpenAI-compatible API endpoint to 275+ models from 25+ providers including Anthropic, OpenAI, Google, Meta, Mistral, DeepSeek, xAI, Alibaba, Amazon, ByteDance, Cohere, MiniMax, MoonshotAI, KwaiPilot, Black Forest Labs, Recraft, Voyage AI, NVIDIA, and more.
Compare DeepSeek V4 Flash 0731 across 4 providers to find the best fit for your use caseSetup recipe
Python + curlpip install openaiexport AI_GATEWAY_API_KEY=...import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["AI_GATEWAY_API_KEY"],deepseek/deepseek-v4-flash-0731Request example
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["AI_GATEWAY_API_KEY"],
base_url="https://ai-gateway.vercel.sh/v1"
)
response = client.chat.completions.create(
model="deepseek/deepseek-v4-flash-0731",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use provider model ID "deepseek/deepseek-v4-flash-0731", not the LLMReference slug "deepseek-v4-flash-0731".
- creator/model-name e.g. kwaipilot/kat-coder-pro-v2
- The examples expect AI_GATEWAY_API_KEY; rename it only if your application config maps the new variable.
Compare DeepSeek V4 Flash 0731 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenRouter | $0.13 | $0.39 |
| Vercel AI Gateway | $0.08 | $0.15 |
| Together AI | $0.14 | $0.28 |
| Fireworks AI | — | — |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.08 |
| Output tokens | $0.15 |
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.