DeepSeek V4 Flash

by DeepSeek

Released 144 days after DeepSeek V3.2 · All DeepSeek releases

DeepSeek-V4-Flash, released April 2026, is a lightweight 284-billion-parameter sparse MoE with just 13 billion active parameters per token, supporting a one-million-token context window. It reaches roughly 10% of the inference FLOPs and 7% of the KV-cache memory of V3.2, using a hybrid of Compressed Sparse Attention (CSA) and Heavily Compressed Attention (HCA) for efficient long context. The model offers three reasoning modes, non-think, think-high, and think-max, plus a dedicated XML-based tool-call format that preserves reasoning content across tool-call boundaries for cleaner agentic loops. Its reasoning quality is reported to approach the larger V4-Pro on many tasks. Open-sourced under an MIT license with weights on Hugging Face, V4-Flash targets cost-conscious teams deploying long-context reasoning agents that need affordable million-token inference.

Key info

Input
Output
Features
Context window
1M
Max output
393K
Input price
$0.15 /1M
Output price
$0.30 /1M
Released
  • EU residency available
  • US residency available
  • Zero data retention on pay-as-you-go
  • No training by default
  • GDPR DPA available

Available routes

DeepSeek V4 Flash runs on 12 different routes through the Opper gateway. Compare residency, ZDR, and training posture at a glance — full data-handling detail per route below.

ProviderRegionZero data retentionTrainingInputOutput
MultiNot by defaultNo$0.15$0.30
MultiNot by defaultNo$0.14$0.28
USZero data retentionNo$0.09$0.18
USNot by defaultNo$0.07$0.17
MultiZero data retentionNo$0.22$0.66
USZero data retentionNo$0.14$0.30
USNot by defaultNo$0.10$0.28
EUNot by defaultNo$0.14$0.28
EUNot by defaultNo$0.14$0.28
USZero data retentionNo$0.14$0.28
EUZero data retentionNo$0.14$0.28
EUZero data retentionNo$0.25$0.30

Uptime and availability

DeepSeek V4 Flash runs on 5 independently monitored routes through the Opper gateway. A direct integration leaves you on one of them, the gateway serves whichever is healthy.

100%effective uptime, last 30 days
Averaged across these routes on their own, a single provider reached 99.27% over the same window.
Daily status through the gateway, which serves each request from whichever route is healthy.
5 monitored providers serve DeepSeek V4 Flash.

Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. 7 further routes for this model are not on the board yet and are not counted above. See uptime for every provider Opper monitors.

Data handling per route

Each route hosting DeepSeek V4 Flash has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

Alibaba Cloud Multi-region

Zero data retention is not on by default — abuse monitoring. No training on customer data. GLOBAL; SCCs; DPA available.

Zero data retention
Not by default — abuse monitoring. Derived from the logging and moderation facts.
Training
No training on customer data.
Logging
Abuse monitoring
Moderation
Not established
Caching
Not established
Subprocessor access
Not established
GDPR DPA
DPA available
Transfer mechanism
SCCs

BytePlus Multi-region

Zero data retention is not on by default — abuse monitoring, 180-day retention. No training on customer data. GLOBAL; SCCs; DPA available.

Zero data retention
Not by default — abuse monitoring, 180-day retention. Derived from the logging and moderation facts.
Training
No training on customer data.
Logging
Abuse monitoring (180-day retention)
Moderation
Not established
Caching
Not established
Subprocessor access
Not established
GDPR DPA
DPA available
Transfer mechanism
SCCs

DeepInfra United States🇺🇸

Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. US; unknown; DPA available.

Zero data retention
On by default on Pay-as-you-go. Derived from the logging and moderation facts.
Training
No training on customer data.
Logging
None
Moderation
Not established
Caching
Not established
Subprocessor access
Not established
GDPR DPA
DPA available
Transfer mechanism
unknown

DigitalOcean United States🇺🇸

Zero data retention is not on by default — a moderation hold applies. No training on customer data. US; dpf sccs; DPA available.

Zero data retention
Not by default — a moderation hold applies. Derived from the logging and moderation facts.
Training
No training on customer data.
Logging
None
Moderation
Holds content for review
Caching
Content cached for replay
Subprocessor access
No subprocessor reads content
GDPR DPA
DPA available
Transfer mechanism
dpf sccs

Fireworks Multi-region

Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. GLOBAL; SCCs; DPA available.

Zero data retention
On by default on Pay-as-you-go. Derived from the logging and moderation facts.
Training
No training on customer data.
Logging
None
Moderation
Not established
Caching
Not established
Subprocessor access
Subprocessors may read content
GDPR DPA
DPA available
Transfer mechanism
SCCs

Geodd United States🇺🇸

Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. US; SCCs; DPA available.

Zero data retention
On by default on Pay-as-you-go. Derived from the logging and moderation facts.
Training
No training on customer data.
Logging
None
Moderation
No hold on content
Caching
Not established
Subprocessor access
Not established
GDPR DPA
DPA available
Transfer mechanism
SCCs

Morph United States🇺🇸

Zero data retention is not on by default — abuse monitoring, 30-day retention. No training on customer data. US; SCCs; DPA available.

Zero data retention
Not by default — abuse monitoring, 30-day retention. Derived from the logging and moderation facts.
Training
No training on customer data.
Logging
Abuse monitoring (30-day retention)
Moderation
Not established
Caching
Not established
Subprocessor access
Not established
GDPR DPA
DPA available
Transfer mechanism
SCCs

Nebius Finland🇫🇮

Zero data retention is not on by default — abuse monitoring. No training on customer data. EU; DPA available.

Zero data retention
Not by default — abuse monitoring. Derived from the logging and moderation facts.
Training
No training on customer data.
Logging
Abuse monitoring
Moderation
Not established
Caching
Not established
Subprocessor access
Not established
GDPR DPA
DPA available
Transfer mechanism
Not applicable — data stays in EU

Nextbit Spain🇪🇸

Zero data retention is not on by default — provider logging, 90-day retention. No training on customer data. EEA; SCCs; DPA available.

Zero data retention
Not by default — provider logging, 90-day retention. Derived from the logging and moderation facts.
Training
No training on customer data.
Logging
Other (90-day retention)
Moderation
Not established
Caching
Not established
Subprocessor access
Not established
GDPR DPA
DPA available
Transfer mechanism
SCCs

Novita United States🇺🇸

Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. US; SCCs; DPA available.

Zero data retention
On by default on Pay-as-you-go. Derived from the logging and moderation facts.
Training
No training on customer data.
Logging
None
Moderation
Not established
Caching
Not established
Subprocessor access
Not established
GDPR DPA
DPA available
Transfer mechanism
SCCs

Sference United Kingdom🇬🇧

Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. EEA; SCCs; DPA available.

Zero data retention
On by default on Pay-as-you-go. Derived from the logging and moderation facts.
Training
No training on customer data.
Logging
None
Moderation
Not established
Caching
Not established
Subprocessor access
No subprocessor reads content
GDPR DPA
DPA available
Transfer mechanism
SCCs

TensorX European Union🇪🇺

Zero data retention is on by default on Pay-as-you-go — no action required. No training on customer data. EU; DPA available.

Zero data retention
On by default on Pay-as-you-go. Derived from the logging and moderation facts.
Training
No training on customer data.
Logging
None
Moderation
Not established
Caching
Not established
Subprocessor access
Not established
GDPR DPA
DPA available
Transfer mechanism
Not applicable — data stays in EU

Benchmarks

Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.

Global rank#55 of 630 LLMs
TierStrong
Output speed121 tok/s
First token0.65s
Intelligence Index41.5
Coding Index65.0
Reasoning & knowledge
GPQA Diamond
91%
Humanity's Last Exam
35%
Long-context reasoning
81%
Coding
SciCode
50%

Get started

Call DeepSeek V4 Flash 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.

Set it up with your agent

Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.

Or call it directly

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: "alibaba:global/deepseek-v4-flash",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

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