DeepSeek V4.1 Flash API pricing

Official DeepSeek list price, last checked Oct 29, 2026. Updated Oct 29, 2026.

Quick answer

DeepSeek V4.1 Flash costs $0.30 per 1M input tokens and $1.20 per 1M output tokens, cached input at $0.006, and a 1M-token context window, per DeepSeek's official pricing page (checked Oct 29, 2026). It's priced in the middle of the pack: number 15 of 77 by blended price ($0.525 per 1M tokens at a 3 to 1 input to output mix). On LMArena's Code Arena it ranks #12 of 50 models we price (relative score 46 out of 100). Cheaper pick: MiMo-V2.6 Flash scores 36 against 46 on the same board at $0.175 blended, 3.0x less. It's also one of our value picks for reasoning and math.

DeepSeek V4.1 Flash price per million tokens

DeepSeek V4.1 Flash price per million tokens	USD
Input	$0.30
Cached input	$0.006
Output	$1.20
Blended, 3 parts input to 1 part output	$0.525
Context window	1M tokens

Official note from DeepSeek: Peak rate. Off-peak is half price.

What DeepSeek V4.1 Flash costs for real work

List-price estimates for a month, no discounts. Our math, not a quote: change the token counts in the plan vs API calculator.

Workload	Tokens a month	DeepSeek V4.1 Flash	MiniMax-M3	MiMo-V2.6 Flash
Light: a side project or personal assistant	2M in, 0.5M out	$1.20	$1.20	$0.42
Medium: a small team or one product feature	20M in, 5M out	$12.00	$12.00	$4.20
Heavy: a production app	200M in, 50M out	$120	$120	$42.00
Medium with 80% of input cached	20M in (16M cached), 5M out	$7.30	$8.16	$2.00

How DeepSeek V4.1 Flash ranks on LMArena

Relative score: 100 is the top model we price on that board. Rank is among the models in our price table, not the full leaderboard.

Board	Rank	Score /100	Rating
Coding (Code Arena)	#12 of 50	46	1665
Chat (Text Arena)	#18 of 51	17	1476.2
Creative writing (Text Arena creative writing)	#22 of 51	0	1440.6
Roleplay and characters (Text Arena multi-turn)	#24 of 51	0	1468.5
Reasoning and math (Text Arena math)	#14 of 51	40	1498
Vision (Vision Arena)	#19 of 33	14	1261.4
Cheap bulk and agents (Agent Arena)	#16 of 34	50	0.0191

Closest rivals to DeepSeek V4.1 Flash

The models nearest in price, other makers first. Ranks are on Code Arena, where we have them.

Model	In / out	Blended	Coding rank	Verdict
MiniMax-M3 MiniMax	$0.30 / $1.20	$0.525	#34	DeepSeek V4.1 Flash wins: same price, higher score. Compare
MiMo-V2.6 Pro Xiaomi MiMo	$0.435 / $0.87	$0.5437	#19	DeepSeek V4.1 Flash wins on both. Compare
Qwen3.6 Flash Qwen	$0.25 / $1.50	$0.5625	n/a	DeepSeek V4.1 Flash wins on price. Compare
GLM-5.3 FlashX GLM (Z.ai)	$0.37 / $1.25	$0.59	n/a	DeepSeek V4.1 Flash wins on price. Compare

Cheaper alternatives to DeepSeek V4.1 Flash

At least 40% cheaper blended, best LMArena score first.

Model	In / out	Blended	Coding rank	Verdict
MiMo-V2.6 Flash Xiaomi MiMo	$0.14 / $0.28	$0.175	#17	MiMo-V2.6 Flash for price, DeepSeek V4.1 Flash for quality. Compare
GLM-5.3 Flash GLM (Z.ai)	$0.15 / $0.50	$0.2375	#21	GLM-5.3 Flash for price, DeepSeek V4.1 Flash for quality. Compare
Claude Haiku 5.5 Anthropic	$0.10 / $0.50	$0.20	#24	Claude Haiku 5.5 for price, DeepSeek V4.1 Flash for quality. Compare

FAQ

How much does the DeepSeek V4.1 Flash API cost per million tokens?

$0.30 per 1M input tokens and $1.20 per 1M output tokens, plus $0.006 per 1M for cached input, as of Oct 29, 2026. A typical 3 to 1 input to output mix works out to $0.525 per 1M tokens.

Does DeepSeek V4.1 Flash charge more for long prompts?

DeepSeek doesn't list a long-prompt surcharge for DeepSeek V4.1 Flash. Its pricing note says: Peak rate. Off-peak is half price.

Is DeepSeek V4.1 Flash cheaper than MiniMax-M3?

About the same. A medium month (20M input and 5M output tokens) costs $12.00 on DeepSeek V4.1 Flash and $12.00 on MiniMax-M3 at list price. On Code Arena, DeepSeek V4.1 Flash ranks #12 and MiniMax-M3 #34.

How does DeepSeek V4.1 Flash rank on LMArena?

On Code Arena it is #12 of 50 models we price, with a relative score of 46 out of 100. It ranks on 7 of 8 boards we track.

What is a cheaper alternative to DeepSeek V4.1 Flash?

MiMo-V2.6 Flash costs $0.14 in and $0.28 out per 1M tokens, about 3.0x less blended, and scores 36 on Code Arena against 46 for DeepSeek V4.1 Flash.

Where does this DeepSeek V4.1 Flash price come from?

From DeepSeek's official pricing page, which we check every day. This page was last checked Oct 29, 2026.