Nemotron 3 Ultra vs Sonar

Nemotron 3 Ultra at $0.690 in and $4.14 out and Sonar at $1.15 in and $1.15 out — per million tokens, from the same wallet.

Nemotron 3 Ultra

NVIDIA

0.68¢

for a client proposal

$0.690 in · $4.14 out / 1M

512K context · released 2 months ago

Full page →

Sonar

Perplexity

0.67¢

for a client proposal

$1.15 in · $1.15 out / 1M

127K context · released January 2025

Full page →

Asking all both at once — identical prompt, identical context — costs about 1.3¢ for a typical client proposal.

At a glance

Cheapest input: Nemotron 3 Ultra at $0.690 per million tokens.
Cheapest output: Sonar at $1.15 per million tokens.
Largest context: Nemotron 3 Ultra at 512K tokens — about 730 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

Nemotron 3 Ultra

0.34¢

Sonar

0.29¢

Draft a client proposal from notes

5K in · 800 out

Nemotron 3 Ultra

0.68¢

Sonar

0.67¢

Context-heavy session (Alyph workspace)

155K in · 4K out

Nemotron 3 Ultra

$0.12

Sonar

needs 155K ctx

Analyze a 50-page legal contract

35K in · 1K out

Nemotron 3 Ultra

2.8¢

Sonar

4.1¢

Large architecture refactor

250K in · 3K out

Nemotron 3 Ultra

$0.18

Sonar

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

Nemotron 3 Ultra

Sonar

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

Pricing

Nemotron 3 Ultra

Sonar

Input / 1M tokens

$0.690

$1.15

Output / 1M tokens

$4.14

$1.15

Cached input / 1M

$0.230

—

Web search

—

0.57¢ / search

Specs

Nemotron 3 Ultra

Sonar

Provider

NVIDIA

Perplexity

Released

2 months ago

January 2025

Context window

512K

127K

Max output

—

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.

Nemotron 3 Ultra

NVIDIA

0.34¢

for this task

40% input · 60% output

Full pricing →

Sonar

Perplexity

0.29¢

for this task

80% input · 20% output

Full pricing →

All 2, same prompt and context: 0.63¢. That is the entire cost of the comparison.

Your $5 welcome credit covers about 790 of these.

Which should you pick?

For long documents, Nemotron 3 Ultra has the largest context window here — 512K tokens.

On price, Sonar is the cheapest of the two on a typical task, at about 0.67¢.

For images or files, Sonar can read them directly; Nemotron 3 Ultra is text-only.

If you want to watch the model think, Nemotron 3 Ultra 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 →

Nemotron 3 Ultra pricing →Sonar pricing →Add Lyria 3 Clip Preview Add Grok 4.20

Questions, answered

Which is cheaper, Nemotron 3 Ultra or Sonar?

On a typical client proposal (5K tokens in, 800 out): Sonar at 0.67¢; Nemotron 3 Ultra at 0.68¢. Long prompts can change the order when long-context rates apply.

Which has the largest context window?

Nemotron 3 Ultra — 512K tokens, about 730 pages.

Can I run Nemotron 3 Ultra and Sonar 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 1.3¢ for a typical task.

Ask both at once

Identical prompt, identical context, answers side by side — about 1.3¢ for a typical client proposal. Free to start, with $5 of credit.