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Claude Sonnet 5 vs Muse Ember

Claude Sonnet 5 and Muse Ember are closely matched at 46.4 and 45.9 on the LLM Stats Score. Muse Ember is 20.0x cheaper per token.

Anthropic · Meta · Updated for 2026

Which is better?

Claude Sonnet 5 and Muse Ember are closely matched on the overall LLM Stats Score at 46.4 and 45.9.

In the 1 individual benchmarks reported for both models, Muse Ember wins 1; this is a narrower head-to-head signal than the composite indexes.

On price, Muse Ember is roughly 20.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Muse Ember also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude Sonnet 5

  • you want predictable pricing at $2.00/M input and $10.00/M output

Choose Muse Ember

  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • cost matters — it's about 20.0x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Nov 2026

At a glance

The differences that matter most.

Claude Sonnet 5
Anthropic
Muse Ember
Meta
Core performance indexes
LLM Stats Score
46.4
#45
45.9
#47
Reasoning
46.2
#36
48.1
#24
Coding
32.9
#45
27.3
#85
Agents
28.4
#60
31.6
#45
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
$2.00 / M
$0.10 / M
Output price
$10.00 / M
$0.50 / M
Context window
1,000,000
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
Claude Sonnet 5
Muse Ember
Vision
33.4#23
23.4#78
Tool use
21.6#71
30.7#14
Multimodal
31.3#32
23.6#74
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

24 reported for Claude Sonnet 5 · 6 for Muse Ember

1 shared

Claude Sonnet 5 outperforms in 0 benchmarks, while Muse Ember is better at 1 benchmark (Terminal-Bench 4.0).

Muse Ember significantly outperforms across most benchmarks.

Sat Nov 14 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Muse Ember costs less

For input processing, Claude Sonnet 5 ($2.00/1M tokens) is 20.0x more expensive than Muse Ember ($0.10/1M tokens).

For output processing, Claude Sonnet 5 ($10.00/1M tokens) is 20.0x more expensive than Muse Ember ($0.50/1M tokens).

In conclusion, Claude Sonnet 5 is more expensive than Muse Ember.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Sat Nov 14 2026 • llm-stats.com
Anthropic
Claude Sonnet 5
Input tokens$2.00
Output tokens$10.00
Best providerAnthropic
Meta
Muse Ember
Input tokens$0.10
Output tokens$0.50
Best providerMeta
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

Muse Ember accepts 1,048,576 input tokens compared to Claude Sonnet 5's 1,000,000 tokens. Muse Ember can generate longer responses up to 524,288 tokens, while Claude Sonnet 5 is limited to 64,000 tokens.

Anthropic
Claude Sonnet 5
Input1,000,000 tokens
Output64,000 tokens
Meta
Muse Ember
Input1,048,576 tokens
Output524,288 tokens
Sat Nov 14 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Sonnet 5 and Muse Ember support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude Sonnet 5

Text
Images
Audio
Video

Muse Ember

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude Sonnet 5

Proprietary

Closed source

Muse Ember

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Sonnet 5 was released on 2026-06-30, while Muse Ember was released on 2026-11-09.

Muse Ember is 4 months newer than Claude Sonnet 5.

Claude Sonnet 5

Jun 30, 2026

4 months ago

Muse Ember

Nov 9, 2026

3 days ago

4mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

Claude Sonnet 5 is available from Anthropic, DeepInfra. Muse Ember is available from Meta Model API.

Claude Sonnet 5

anthropic logo
Anthropic
Input Price:Input: $2.00/1MOutput Price:Output: $10.00/1M
deepinfra logo
Deepinfra
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

Muse Ember

meta logo
Meta
Input Price:Input: $0.10/1MOutput Price:Output: $0.50/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Sonnet 5 and Muse Ember side-by-side, then vote on the output you prefer.

Claude Sonnet 5
✓ Preferred
Muse Ember
Open in Playground

FAQ

Common questions about Claude Sonnet 5 vs Muse Ember.

Which is better, Claude Sonnet 5 or Muse Ember?

Claude Sonnet 5 and Muse Ember are closely matched on the LLM Stats Score at 46.4 and 45.9. Claude Sonnet 5 is made by Anthropic and Muse Ember is made by Meta. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude Sonnet 5 compare to Muse Ember in benchmarks?

Claude Sonnet 5 scores CharXiv-R: 88.3%, ChartMuseum: 86.7%, SWE-Bench Verified: 85.2%, BrowseComp: 84.7%, GDP.pdf: 81.6%. Muse Ember scores PerceptionBench: 80.6%, OSWorld 2.1 (partial): 69.5%, Agents' Last Exam: 61.6%, Personal Superintelligence Index: 46.8%, Terminal-Bench 4.0: 40.9%.

Is Claude Sonnet 5 cheaper than Muse Ember?

Muse Ember is 20.0x cheaper for input tokens. Claude Sonnet 5 costs $2.00/M input and $10.00/M output via anthropic. Muse Ember costs $0.10/M input and $0.50/M output via meta.

What are the context window sizes for Claude Sonnet 5 and Muse Ember?

Claude Sonnet 5 supports 1.0M tokens and Muse Ember supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Sonnet 5 and Muse Ember?

Key differences include LLM Stats Score (46.4 vs 45.9), context window (1.0M vs 1.0M), input pricing ($2.00 vs $0.10/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Sonnet 5 and Muse Ember?

Claude Sonnet 5 is developed by Anthropic and Muse Ember is developed by Meta.

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