AI Models · Open-Source vs Paid

Hermes 4 405B Open vs Muse Wonder Paid

Hermes 4 405B vs Muse Wonder compared — price per token, context window, multimodality, openness and which to choose. Can the open-source model replace the paid one? Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

Hermes 4 405BOpenNous Research
$1 /M input
$3 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window131K tokens
MultimodalNo
Self-hostYes
Muse WonderPaidMeta
$4 /M input
$20 /M outputManaged API (no infra to run)
TypeProprietary
Context window1M tokens
MultimodalYes
Self-hostNo
Choose Hermes 4 405B if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Muse Wonder if you want frontier capability through a managed API with zero infrastructure to run.

Hermes 4 405B vs Muse Wonder specs

SpecHermes 4 405BMuse WonderWinner
MakerNous ResearchMeta–
TypeOpen-weightProprietaryHermes 4 405B
Context window131K tokens1M tokensMuse Wonder
Input price$1/M · free self-host$4/MHermes 4 405B
Output price$3/M · free self-host$20/MHermes 4 405B
Vision / multimodalNoYesMuse Wonder
Tool / function callingNoYesMuse Wonder
Self-hostableYesNo (API only)Hermes 4 405B
LicenseOpen weightsProprietaryHermes 4 405B

Price gap & when to choose each

6.7×cheaper per output token

Hermes 4 405B is ~6.7× cheaper than Muse Wonder on output tokens ($3 vs $20 per M tokens).

Choose Hermes 4 405B if…
  • You want to self-host or run on your cloud
  • You prioritize data privacy & control
  • You want the lowest operating costs
  • You are building open or reproducible AI
Choose Muse Wonder if…
  • You want frontier performance through a managed API
  • You need the longer 1M context window
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityHermes 4 405BMuse Wonder
Open weights (downloadable)✓✗
Self-hostable✓✗
Runs fully offline✓✗
Vision / multimodal✗✓
Tool / function calling✗✓
1M+ context window✗✓

Benchmarks: Hermes 4 405B vs Muse Wonder

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

Hermes 4 405B
Muse Wonder
Intelligence index
7.4
52.4
Math index
15.3
–
GPQA
53.6%
–
MMLU-Pro
72.9%
–
Humanity's Last Exam
4.2%
50.1%
Long Context Reasoning
22%
80.7%
LiveCodeBench
54.6%
–
AIME 2025
15.3%
–
IFBench
34.8%
–
τ²-Bench
26.6%
–
Terminal-Bench Hard
9.8%
–
SciCode
–
60.3%
Speed
43.9 tok/s
154.7 tok/s
Latency
0.67s
21.71s
Intelligence per $
4.9
6.6

Benchmark data by Artificial Analysis.

How Hermes 4 405B and Muse Wonder score

🏆 Best value & openness: Hermes 4 405B (3.9 vs 3.1 / 5)
CriterionHermes 4 405BMuse Wonder
Cost-efficiency4.03.0
Context window3.55.0
Openness5.01.5
Self-hosting5.01.0
Multimodality2.05.0

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

Hermes 4 405B Open

Nous Research · Open-weight

Hermes 4 is a large-scale reasoning model built on Meta-Llama-3.1-405B and released by Nous Research. It introduces a hybrid reasoning mode, where the model can choose to deliberate internally with...

Muse Wonder Paid

Meta · Proprietary

Muse Wonder is a frontier reasoning model from Meta, designed for complex personal and professional agentic tasks. It accepts text, images, video, audio, and PDF documents and returns text, with...

Frequently asked questions

Is Hermes 4 405B as good as Muse Wonder?

Hermes 4 405B is open-weight and competitive on many tasks, but Muse Wonder may still lead on the hardest reasoning and agentic work. The gap keeps narrowing — benchmark both on your actual use case before deciding.

Can I run Hermes 4 405B locally?

Yes. Hermes 4 405B has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. Muse Wonder is API-only and cannot be self-hosted.

How much cheaper is Hermes 4 405B?

Hermes 4 405B costs $3/M output vs $20/M for Muse Wonder — roughly 7x cheaper via API, and free if you self-host.

Hermes 4 405B vs Muse Wonder — which should I pick in 2026?

Choose Hermes 4 405B if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Muse Wonder if you want frontier capability through a managed API with zero infrastructure to run.

People also compare

Explore more open-source AI

Browse the full open-source model leaderboard, thousands of tools and live benchmarks — all in one place.

Open the leaderboard →