DeepSeek V4 Flash 0731 vs Laguna S 2.1

DeepSeek V4 Flash 0731 at $0.103 in and $0.207 out and Laguna S 2.1 at $0.103 in and $0.207 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 →

Laguna S 2.1

Poolside

0.07¢

for a client proposal

$0.103 in · $0.207 out / 1M

1.05M context · released 3 weeks ago

Full page →

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

At a glance

All 2 cost the same on input.
Identical context windows: 1.05M tokens each.

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¢

Laguna S 2.1

0.03¢

Draft a client proposal from notes

5K in · 800 out

DeepSeek V4 Flash 0731

0.07¢

Laguna S 2.1

0.07¢

Context-heavy session (Alyph workspace)

155K in · 4K out

DeepSeek V4 Flash 0731

1.7¢

Laguna S 2.1

1.7¢

Analyze a 50-page legal contract

35K in · 1K out

DeepSeek V4 Flash 0731

0.38¢

Laguna S 2.1

0.38¢

Large architecture refactor

250K in · 3K out

DeepSeek V4 Flash 0731

2.6¢

Laguna S 2.1

2.6¢

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

Laguna S 2.1

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

Pricing

DeepSeek V4 Flash 0731

Laguna S 2.1

Input / 1M tokens

$0.103

Output / 1M tokens

$0.207

Cached input / 1M

$0.021

$0.010

Specs

DeepSeek V4 Flash 0731

Laguna S 2.1

Provider

DeepSeek

Poolside

Released

1 week ago

3 weeks ago

Context window

1.05M

Max output

384K

131K

Input

Text

Output

Text

Reasoning

Shows its thinking

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 →

Laguna S 2.1

Poolside

0.03¢

for this task

67% input · 33% 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 8,051 of these.

Which should you pick?

On price they are identical: about 0.07¢ for a typical task each.

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 →Laguna S 2.1 pricing →Add Lyria 3 Clip Preview Add Grok 4.20

Questions, answered

Which is cheaper, DeepSeek V4 Flash 0731 or Laguna S 2.1?

On a typical client proposal (5K tokens in, 800 out) they cost the same — about 0.07¢ each. Compare them on context and capabilities instead.

Which has the largest context window?

They are identical — 1.05M tokens each, about 1,500 pages.

Can I run DeepSeek V4 Flash 0731 and Laguna S 2.1 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.