DeepSeek V4 Flash 0731 vs Ministral 3 3B 2512

DeepSeek V4 Flash 0731 at $0.103 in and $0.207 out and Ministral 3 3B 2512 at $0.115 in and $0.115 out — per million tokens, from the same wallet.

DeepSeek V4 Flash 0731

DeepSeek

0.07¢

for a client proposal

$0.103 in · $0.207 out / 1M

1.05M context · released 1 week ago

Full page →

Ministral 3 3B 2512

Mistral AI

0.07¢

for a client proposal

$0.115 in · $0.115 out / 1M

131K context · released December 2025

Full page →

Asking all both at once — identical prompt, identical context — costs about 0.14¢ for a typical client proposal.

At a glance

Cheapest input: DeepSeek V4 Flash 0731 at $0.103 per million tokens.
Cheapest output: Ministral 3 3B 2512 at $0.115 per million tokens.
Largest context: DeepSeek V4 Flash 0731 at 1.05M tokens — about 1,500 pages.

Cost per task

Estimated totals at the rates above. Solid bar is input, lighter bar is output.

Quick code fix

2K in · 500 out

DeepSeek V4 Flash 0731

0.03¢

Ministral 3 3B 2512

0.03¢

Draft a client proposal from notes

5K in · 800 out

DeepSeek V4 Flash 0731

0.07¢

Ministral 3 3B 2512

0.07¢

Context-heavy session (Alyph workspace)

155K in · 4K out

DeepSeek V4 Flash 0731

1.7¢

Ministral 3 3B 2512

needs 155K ctx

Analyze a 50-page legal contract

35K in · 1K out

DeepSeek V4 Flash 0731

0.38¢

Ministral 3 3B 2512

0.41¢

Large architecture refactor

250K in · 3K out

DeepSeek V4 Flash 0731

2.6¢

Ministral 3 3B 2512

needs 250K ctx

Solid part of each bar is input tokens, the lighter part is output. Models that don’t fit a task are marked instead of priced.

Cost vs Token Amount

Drag the slider to adjust the split between input and output workload.

80% Input20% Output

DeepSeek V4 Flash 0731

Ministral 3 3B 2512

Adjust the ratio slider to change how output tokens influence the final price for equivalent workloads.

Pricing

DeepSeek V4 Flash 0731

Ministral 3 3B 2512

Input / 1M tokens

$0.103

$0.115

Output / 1M tokens

$0.207

$0.115

Cached input / 1M

$0.021

$0.011

Specs

DeepSeek V4 Flash 0731

Ministral 3 3B 2512

Provider

DeepSeek

Mistral AI

Released

1 week ago

December 2025

Context window

1.05M

131K

Max output

384K

—

Input

Text

Text and Images

Output

Text

Reasoning

Shows its thinking

Answers directly

Knowledge cutoff

—

Try it with real numbers

2K tokens in · 500 tokens out.

DeepSeek V4 Flash 0731

DeepSeek

0.03¢

for this task

67% input · 33% output

Full pricing →

Ministral 3 3B 2512

Mistral AI

0.03¢

for this task

80% input · 20% output

Full pricing →

All 2, same prompt and context: 0.06¢. That is the entire cost of the comparison.

Your $5 welcome credit covers about 8,361 of these.

Which should you pick?

For long documents, DeepSeek V4 Flash 0731 has the largest context window here — 1.05M tokens.

On price, Ministral 3 3B 2512 is the cheapest of the two on a typical task, at about 0.07¢.

For images or files, Ministral 3 3B 2512 can read them directly; DeepSeek V4 Flash 0731 is text-only.

If you want to watch the model think, DeepSeek V4 Flash 0731 shows reasoning; the other answers directly.

Or don’t pick. Send the identical prompt to all both, read the answers side by side, and keep the winner. How to run a fair bake-off →

DeepSeek V4 Flash 0731 pricing →Ministral 3 3B 2512 pricing →Add Lyria 3 Clip Preview Add Grok 4.20

Questions, answered

Which is cheaper, DeepSeek V4 Flash 0731 or Ministral 3 3B 2512?

On a typical client proposal (5K tokens in, 800 out): Ministral 3 3B 2512 at 0.07¢; DeepSeek V4 Flash 0731 at 0.07¢. Long prompts can change the order when long-context rates apply.

Which has the largest context window?

DeepSeek V4 Flash 0731 — 1.05M tokens, about 1,500 pages.

Can I run DeepSeek V4 Flash 0731 and Ministral 3 3B 2512 side by side on Alyph?

Yes — that is what Alyph is built for: the identical prompt with identical context to all 2, answers rendered side by side, billed from one wallet. This exact combination costs about 0.14¢ for a typical task.

Ask both at once

Identical prompt, identical context, answers side by side — about 0.14¢ for a typical client proposal. Free to start, with $5 of credit.