DeepSeek-V4-Flash-0731, released July 31, 2026, is the retrained checkpoint of DeepSeek-V4-Flash and the version that took the V4-Flash API into public beta. The architecture is unchanged, the same lightweight 284-billion-parameter sparse MoE with 13 billion active parameters per token and a one-million-token context window, so the gains come entirely from a substantially improved post-training pipeline focused on coding, agents, reasoning, and tool use. The jump is large: DeepSeek reports the 0731 build beating its own bigger V4-Pro-Preview across nine agent benchmarks, with Terminal Bench 2.1 rising from 61.8 to 82.7 and DeepSWE from 7.3 to 54.4 over the original Flash release. It keeps the three reasoning modes (non-think, think-high, think-max) and the XML-based tool-call format that preserves reasoning content across tool-call boundaries. For teams already running the original deepseek-v4-flash, this checkpoint is the drop-in successor, same shape, same interface, markedly stronger agentic behaviour, and it is what the rolling deepseek-v4-flash-latest alias currently serves.
DeepSeek V4 Flash (0731) runs on 5 different routes through the Opper gateway. Compare residency, ZDR, and training posture at a glance — full data-handling detail per route below.
DeepSeek V4 Flash (0731) runs on 3 independently monitored routes through the Opper gateway. A direct integration leaves you on one of them, the gateway serves whichever is healthy.
Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. 2 further routes for this model are not on the board yet and are not counted above. See uptime for every provider Opper monitors.
Each route hosting DeepSeek V4 Flash (0731) has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.
Zero data retention is available via Opper Enterprise contract. No training on customer data. US; unknown.
Zero data retention is available via Opper Enterprise contract. No training on customer data. GLOBAL; SCCs; DPA available.
Zero data retention is available via Opper Enterprise contract. No training on customer data. US; SCCs; DPA available.
Zero data retention is available via Opper Enterprise contract. No training on customer data. US; SCCs; DPA available.
Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. EEA; SCCs; DPA available.
Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.
Call DeepSeek V4 Flash (0731) through the Opper gateway with one API key. Let your coding agent set it up, or call it directly — Opper is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.
Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.
import OpenAI from "openai";const client = new OpenAI({apiKey: process.env.OPPER_API_KEY,baseURL: "https://api.opper.ai/v3/compat",});const completion = await client.chat.completions.create({model: "deepinfra/deepseek-v4-flash-0731",messages: [{ role: "user", content: "Hello" }],});console.log(completion.choices[0].message.content);
Side-by-side on privacy, EU hosting, pricing, and benchmarks.
