How much does DeepSeek V4 Flash 0731 cost per million tokens?

DeepSeek V4 Flash 0731 costs $0.011 per million input tokens and $1.28 per million output tokens at list price, and $0.011 per million cached input tokens.

What is the context window of DeepSeek V4 Flash 0731?

DeepSeek V4 Flash 0731 accepts up to 1,048,576 tokens of context and returns up to 943,718 output tokens.

How much do 1,000 chat messages cost with DeepSeek V4 Flash 0731?

About $0.65, assuming 1,000 input + 500 output tokens per message.

Is there a cheaper alternative to DeepSeek V4 Flash 0731?

In the same price range, OpenAI GPT-6 Luna Pro ($0.1 / $0.5), OpenAI GPT-6 Luna ($0.1 / $0.5), Qwen Qwen3.8 Omni Flash ($0.15 / $0.47) cost less per token. Quality differs: test on your own prompts.

Where can I buy DeepSeek API credits for less?

Discount credit books resell OpenRouter usage below face value within their depth, OpenRouter adds a 5.5% card fee, and DeepSeek sells its own credits at face value. The live table on this page ranks them for $100 of usage.

DeepSeek · live price

DeepSeek V4 Flash 0731 API pricing

DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoning, and agent workflows....

Small and cheap (under $1 per 1M)Tool callingReasoning

Input: $0.011; per 1M tokens
Output: $1.28; per 1M tokens
Cached input: $0.011; per 1M tokens
Context: 1.0M; 944K max output

List price from OpenRouter, which passes DeepSeek's price through without markup. Refreshed hourly. Released July 31, 2026. Model id deepseek/deepseek-v4-flash-0731.

What DeepSeek V4 Flash 0731 costs in practice

At list price, before any batch or caching discount.

1,000 chat messages

$0.65

1,000 input + 500 output tokens each

1,000 RAG questions

$0.73

8,000 input + 500 output tokens each

100 coding-agent steps

$0.29

30,000 input + 2,000 output tokens each, no caching

DeepSeek V4 Flash 0731 price history

No price change since we started tracking on 2026-10-01. We record prices daily; changes will show here.

DeepSeek V4 Flash 0731 price by host

StreamLake serves it below list price right now. Route to it to pay less on every token.

StreamLake$0.044 in · $0.132 out · 1.0M ctx · 99.4% uptime 24h
DeepInfra$0.06 in · $0.18 out · 1.0M ctx · 99.9% uptime 24h
Makora$0.09 in · $0.195 out · 1M ctx · 97.6% uptime 24h
Sail Research$0.019 in · $0.3 out · 1.0M ctx · 98.2% uptime 24h
DigitalOcean$0.119 in · $0.238 out · 1.0M ctx · 99.9% uptime 24h
BaseTen$0.13 in · $0.26 out · 1.0M ctx · 99.6% uptime 24h
CoreWeave$0.13 in · $0.28 out · 262K ctx · 100.0% uptime 24h
Cohere$0.14 in · $0.28 out · 1.0M ctx · 99.8% uptime 24h
Together$0.14 in · $0.28 out · 1.0M ctx · 99.6% uptime 24h
Parasail$0.14 in · $0.28 out · 1.0M ctx · 99.3% uptime 24h
Venice$0.175 in · $0.35 out · 1M ctx · 99.7% uptime 24h
Morph$0.142 in · $0.4 out · 1.0M ctx · 95.9% uptime 24h
Reka$0.021 in · $0.528 out · 262K ctx · 99.8% uptime 24h
Inceptron$0.05 in · $0.65 out · 1.0M ctx · 99.9% uptime 24h
Mancer 2$0.2 in · $0.6 out · 1.0M ctx · 98.8% uptime 24h
Wafer$0.12 in · $0.7 out · 1.0M ctx · 100.0% uptime 24h
SiliconFlow$0.22 in · $0.66 out · 1.0M ctx · 99.5% uptime 24h
GMICloud$0.286 in · $0.858 out · 1.0M ctx · 100.0% uptime 24h
Phala$0.308 in · $0.924 out · 1.0M ctx · 99.8% uptime 24h
OpenInference$0.012 in · $1.25 out · 1.0M ctx · 93.4% uptime 24h
Relace$0.011 in · $1.28 out · 1.0M ctx · 99.8% uptime 24h
NextBit$0.352 in · $1.06 out · 1.0M ctx · 100.0% uptime 24h
Alibaba$0.352 in · $1.06 out · 1M ctx · 99.3% uptime 24h
Novita$0.409 in · $1.23 out · 1.0M ctx · 100.0% uptime 24h
Baidu$0.44 in · $1.32 out · 1.0M ctx · 99.6% uptime 24h
AtlasCloud$0.44 in · $1.32 out · 1.0M ctx · 99.8% uptime 24h
Cloudflare$0.44 in · $1.32 out · 1.0M ctx · 100.0% uptime 24h

Where to buy DeepSeek credits for less

DeepSeek V4 Flash 0731 costs the same per token everywhere it's sold through OpenRouter. What changes is the price of the credits. Live quotes for $100 of usage:

#	Where you buy	You payYou pay for $100.00 of usage	vs list price	Price source
1	OrbioCardCheapest right now Credits from a discount book, plus a 5% platform fee and card processing, both included in the quote.	$85.10 incl. $2.60 card processing	-14.9%	live quote
2	smaaartCard Credits from a discount book, plus a 5% platform fee on face value. Card processing and taxes shown at checkout.	$95.00 + card processing and tax at checkout (not in this number)	-5.0%	live quote
3	Direct from the labCard Prepaid credits at face value (OpenAI, Anthropic, Google…). Taxes may apply.	$100.00 no top-up fee	list price	face value
4	OpenRouterCrypto 5% on crypto purchases. No markup on model prices.	$105.00 fees included	+5.0%	published fee
5	OpenRouterCard 5.5% on card purchases, $0.80 minimum. No markup on model prices.	$105.50 fees included	+5.5%	published fee

Disclosure: this site is run by the team behind smaaart, one of the options compared. Tables are ranked by price only, from live quotes and published fees, including when smaaart isn't first. How we compare

DeepSeek V4 Flash 0731 cost calculator

Enter your monthly tokens to price your own usage.

Model$0.011 in / $1.28 out per 1M tokens · list price, liveInput tokens / month (millions)Output tokens / month (millions)

Usage at list price$13.34/ month(quotes below are for $13.00: purchases run from $5.00 to $10,000.00)

Cheaper alternatives to DeepSeek V4 Flash 0731

Other labs' models in the same price range or the one below, cheaper per token.

Model	Input / 1M	Output / 1M	Blended 3:1	Context
OpenAI: GPT-6 Luna Pro	$0.1	$0.5	$0.2	1.1M
OpenAI: GPT-6 Luna	$0.1	$0.5	$0.2	1.1M
Qwen: Qwen3.8 Omni Flash	$0.15	$0.47	$0.23	1M
Qwen: Qwen3.8 Flash	$0.15	$0.47	$0.23	1M
Z.ai: GLM 5.3 Flash	$0.15	$0.5	$0.237	1.0M
Qwen: Qwen3.7 Flash	$0.03	$0.13	$0.055	1M

Other DeepSeek models

Model	Input / 1M	Output / 1M	Blended 3:1	Context
DeepSeek V4 Pro 0813	$0.66	$1.98	$0.99	1.0M
DeepSeek V4 Flash Vision Exp	$0.216	$0.647	$0.323	1.0M
DeepSeek V4.1 Flash	$0.03	$0.5	$0.147	1.0M
DeepSeek V4 Pro 0423	$0.209	$0.418	$0.261	1.0M
DeepSeek V4 Flash 0423	$0.042	$0.084	$0.052	1.0M
DeepSeek V3.2	$0.28	$0.42	$0.315	164K

All DeepSeek API prices