Hermes 3 405B Instruct vs Sonar

Hermes 3 405B Instruct at $1.15 in and $1.15 out and Sonar at $1.15 in and $1.15 out — per million tokens, from the same wallet.

Hermes 3 405B Instruct

Nous Research

0.67¢

for a client proposal

$1.15 in · $1.15 out / 1M

131K context · released August 2024

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

All 2 cost the same on input.
Largest context: Hermes 3 405B Instruct at 131K tokens — about 190 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

Hermes 3 405B Instruct

0.29¢

Sonar

0.29¢

Draft a client proposal from notes

5K in · 800 out

Hermes 3 405B Instruct

0.67¢

Sonar

0.67¢

Context-heavy session (Alyph workspace)

155K in · 4K out

Hermes 3 405B Instruct

needs 155K ctx

Sonar

needs 155K ctx

Analyze a 50-page legal contract

35K in · 1K out

Hermes 3 405B Instruct

4.1¢

Sonar

4.1¢

Large architecture refactor

250K in · 3K out

Hermes 3 405B Instruct

needs 250K ctx

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

Hermes 3 405B Instruct

Sonar

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

Pricing

Hermes 3 405B Instruct

Sonar

Input / 1M tokens

$1.15

Output / 1M tokens

$1.15

Web search

—

0.57¢ / search

Specs

Hermes 3 405B Instruct

Sonar

Provider

Nous Research

Perplexity

Released

August 2024

January 2025

Context window

131K

127K

Max output

16K

—

Input

Text

Text and Images

Output

Text

Reasoning

Answers directly

Knowledge cutoff

2023-12-31

—

Try it with real numbers

2K tokens in · 500 tokens out.

Hermes 3 405B Instruct

Nous Research

0.29¢

for this task

80% input · 20% output

Full pricing →

Sonar

Perplexity

0.29¢

for this task

80% input · 20% output

Full pricing →

All 2, same prompt and context: 0.57¢. That is the entire cost of the comparison.

Your $5 welcome credit covers about 869 of these.

Which should you pick?

For long documents, Hermes 3 405B Instruct has the largest context window here — 131K tokens.

On price they are identical: about 0.67¢ for a typical task each.

For images or files, Sonar can read them directly; Hermes 3 405B Instruct is text-only.

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 →

Hermes 3 405B Instruct pricing →Sonar pricing →Add Lyria 3 Clip Preview Add Grok 4.20

Questions, answered

Which is cheaper, Hermes 3 405B Instruct or Sonar?

On a typical client proposal (5K tokens in, 800 out) they cost the same — about 0.67¢ each. Compare them on context and capabilities instead.

Which has the largest context window?

Hermes 3 405B Instruct — 131K tokens, about 190 pages.

Can I run Hermes 3 405B Instruct 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.