Hermes 4 405B vs Palmyra X5

Hermes 4 405B at $1.15 in and $3.45 out and Palmyra X5 at $0.690 in and $6.90 out — per million tokens, from the same wallet.

Hermes 4 405B

Nous Research

0.85¢

for a client proposal

$1.15 in · $3.45 out / 1M

131K context · released August 2025

Full page →

Palmyra X5

Writer

0.9¢

for a client proposal

$0.690 in · $6.90 out / 1M

1.04M context · released 7 months ago

Full page →

Asking all both at once — identical prompt, identical context — costs about 1.7¢ for a typical client proposal.

At a glance

Cheapest input: Palmyra X5 at $0.690 per million tokens.
Cheapest output: Hermes 4 405B at $3.45 per million tokens.
Largest context: Palmyra X5 at 1.04M 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

Hermes 4 405B

0.4¢

Palmyra X5

0.48¢

Draft a client proposal from notes

5K in · 800 out

Hermes 4 405B

0.85¢

Palmyra X5

0.9¢

Context-heavy session (Alyph workspace)

155K in · 4K out

Hermes 4 405B

needs 155K ctx

Palmyra X5

$0.13

Analyze a 50-page legal contract

35K in · 1K out

Hermes 4 405B

4.4¢

Palmyra X5

3.1¢

Large architecture refactor

250K in · 3K out

Hermes 4 405B

needs 250K ctx

Palmyra X5

$0.19

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 4 405B

Palmyra X5

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

Pricing

Hermes 4 405B

Palmyra X5

Input / 1M tokens

$1.15

$0.690

Output / 1M tokens

$3.45

$6.90

Specs

Hermes 4 405B

Palmyra X5

Provider

Nous Research

Writer

Released

August 2025

7 months ago

Context window

131K

1.04M

Max output

—

Input

Text

Output

Text

Reasoning

Shows its thinking

Answers directly

Knowledge cutoff

2024-08-31

—

Try it with real numbers

2K tokens in · 500 tokens out.

Hermes 4 405B

Nous Research

0.4¢

for this task

57% input · 43% output

Full pricing →

Palmyra X5

Writer

0.48¢

for this task

29% input · 71% output

Full pricing →

All 2, same prompt and context: 0.89¢. That is the entire cost of the comparison.

Your $5 welcome credit covers about 564 of these.

Which should you pick?

For long documents, Palmyra X5 has the largest context window here — 1.04M tokens.

On price, Hermes 4 405B is the cheapest of the two on a typical task, at about 0.85¢.

If you want to watch the model think, Hermes 4 405B 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 →

Hermes 4 405B pricing →Palmyra X5 pricing →Add Lyria 3 Clip Preview Add Grok 4.20

Questions, answered

Which is cheaper, Hermes 4 405B or Palmyra X5?

On a typical client proposal (5K tokens in, 800 out): Hermes 4 405B at 0.85¢; Palmyra X5 at 0.9¢. Long prompts can change the order when long-context rates apply.

Which has the largest context window?

Palmyra X5 — 1.04M tokens, about 1,500 pages.

Can I run Hermes 4 405B and Palmyra X5 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 1.7¢ for a typical task.

Ask both at once

Identical prompt, identical context, answers side by side — about 1.7¢ for a typical client proposal. Free to start, with $5 of credit.