Magnum v4 72B vs Nano Banana Pro (Gemini 3 Pro Image)

Magnum v4 72B at $3.45 in and $5.75 out and Nano Banana Pro (Gemini 3 Pro Image) at $2.30 in and $13.80 out — per million tokens, from the same wallet.

Magnum v4 72B

Anthracite

2.2¢

for a client proposal

$3.45 in · $5.75 out / 1M

16K context · released October 2024

Full page →

Nano Banana Pro (Gemini 3 Pro Image)

Google

2.3¢

for a client proposal

$2.30 in · $13.80 out / 1M

66K context · released 2 months ago

Full page →

Asking all both at once — identical prompt, identical context — costs about 4.4¢ for a typical client proposal.

At a glance

Cheapest input: Nano Banana Pro (Gemini 3 Pro Image) at $2.30 per million tokens.
Cheapest output: Magnum v4 72B at $5.75 per million tokens.
Largest context: Nano Banana Pro (Gemini 3 Pro Image) at 66K tokens — about 94 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

Magnum v4 72B

0.98¢

Nano Banana Pro (Gemini 3 Pro Image)

1.1¢

Draft a client proposal from notes

5K in · 800 out

Magnum v4 72B

2.2¢

Nano Banana Pro (Gemini 3 Pro Image)

2.3¢

Context-heavy session (Alyph workspace)

155K in · 4K out

Magnum v4 72B

needs 155K ctx

Nano Banana Pro (Gemini 3 Pro Image)

needs 155K ctx

Analyze a 50-page legal contract

35K in · 1K out

Magnum v4 72B

needs 35K ctx

Nano Banana Pro (Gemini 3 Pro Image)

$0.09

Large architecture refactor

250K in · 3K out

Magnum v4 72B

needs 250K ctx

Nano Banana Pro (Gemini 3 Pro Image)

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

Magnum v4 72B

Nano Banana Pro (Gemini 3 Pro Image)

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

Pricing

Magnum v4 72B

Nano Banana Pro (Gemini 3 Pro Image)

Input / 1M tokens

$3.45

$2.30

Output / 1M tokens

$5.75

$13.80

Cached input / 1M

—

$0.230

Web search

—

1.6¢ / search

Specs

Magnum v4 72B

Nano Banana Pro (Gemini 3 Pro Image)

Provider

Anthracite

Google

Released

October 2024

2 months ago

Context window

16K

66K

Max output

33K

Input

Text

Images and Text

Output

Text

Images and Text

Reasoning

Answers directly

Shows its thinking

Knowledge cutoff

2024-06-30

—

Try it with real numbers

2K tokens in · 500 tokens out.

Magnum v4 72B

Anthracite

0.98¢

for this task

71% input · 29% output

Full pricing →

Nano Banana Pro (Gemini 3 Pro Image)

Google

1.1¢

for this task

40% input · 60% output

Full pricing →

All 2, same prompt and context: 2.1¢. That is the entire cost of the comparison.

Your $5 welcome credit covers about 235 of these.

Which should you pick?

For long documents, Nano Banana Pro (Gemini 3 Pro Image) has the largest context window here — 66K tokens.

On price, Magnum v4 72B is the cheapest of the two on a typical task, at about 2.2¢.

For images or files, Nano Banana Pro (Gemini 3 Pro Image) can read them directly; Magnum v4 72B is text-only.

If you want to watch the model think, Nano Banana Pro (Gemini 3 Pro Image) 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 →

Magnum v4 72B pricing →Nano Banana Pro (Gemini 3 Pro Image) pricing →Add Lyria 3 Clip Preview Add Grok 4.20

Questions, answered

Which is cheaper, Magnum v4 72B or Nano Banana Pro (Gemini 3 Pro Image)?

On a typical client proposal (5K tokens in, 800 out): Magnum v4 72B at 2.2¢; Nano Banana Pro (Gemini 3 Pro Image) at 2.3¢. Long prompts can change the order when long-context rates apply.

Which has the largest context window?

Nano Banana Pro (Gemini 3 Pro Image) — 66K tokens, about 94 pages.

Can I run Magnum v4 72B and Nano Banana Pro (Gemini 3 Pro Image) 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 4.4¢ for a typical task.

Ask both at once

Identical prompt, identical context, answers side by side — about 4.4¢ for a typical client proposal. Free to start, with $5 of credit.