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Claude Sonnet 4.6 vs Muse Spark 1.3

Muse Spark 1.3 leads the LLM Stats Score 55.4 to 37.3. Muse Spark 1.3 is 48.0x cheaper per token.

Anthropic · Meta · Updated for 2026

Which is better?

Muse Spark 1.3 leads the overall LLM Stats Score 55.4 to 37.3, ranking #5 overall.

In the 1 individual benchmarks reported for both models, Muse Spark 1.3 wins 1; this is a narrower head-to-head signal than the composite indexes.

On price, Muse Spark 1.3 is roughly 48.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Muse Spark 1.3 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 4.6

  • you want predictable pricing at $3.00/M input and $15.00/M output

Choose Muse Spark 1.3

  • overall performance matters — it scores 55.4 and ranks #5 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • cost matters — it's about 48.0x 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 Sep 2026

At a glance

The differences that matter most.

Claude Sonnet 4.6
Anthropic
Muse Spark 1.3
Meta
Core performance indexes
LLM Stats Score
37.3
#63
55.4
#5
Reasoning
38.4
#59
53.0
#6
Coding
26.3
#60
41.6
#9
Agents
24.7
#45
40.6
#4
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
$3.00 / M
$0.10 / M
Output price
$15.00 / M
$0.20 / M
Context window
200,000
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Claude Sonnet 4.6
Muse Spark 1.3
Tool use
21.8#46
35.4#1
Long context
12.1#59
31.7#1
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

17 reported for Claude Sonnet 4.6 · 11 for Muse Spark 1.3

1 shared

Claude Sonnet 4.6 outperforms in 0 benchmarks, while Muse Spark 1.3 is better at 1 benchmark (DeepSWE 1.1).

Muse Spark 1.3 significantly outperforms across most benchmarks.

Thu Sep 03 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Muse Spark 1.3 costs less

For input processing, Claude Sonnet 4.6 ($3.00/1M tokens) is 30.0x more expensive than Muse Spark 1.3 ($0.10/1M tokens).

For output processing, Claude Sonnet 4.6 ($15.00/1M tokens) is 75.0x more expensive than Muse Spark 1.3 ($0.20/1M tokens).

In conclusion, Claude Sonnet 4.6 is more expensive than Muse Spark 1.3.*

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

Lowest available price from all providers
Thu Sep 03 2026 • llm-stats.com
Anthropic
Claude Sonnet 4.6
Input tokens$3.00
Output tokens$15.00
Best providerAnthropic
Meta
Muse Spark 1.3
Input tokens$0.10
Output tokens$0.20
Best providerMeta
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Muse Spark 1.3 accepts 1,048,576 input tokens compared to Claude Sonnet 4.6's 200,000 tokens. Muse Spark 1.3 can generate longer responses up to 943,718 tokens, while Claude Sonnet 4.6 is limited to 64,000 tokens.

Anthropic
Claude Sonnet 4.6
Input200,000 tokens
Output64,000 tokens
Meta
Muse Spark 1.3
Input1,048,576 tokens
Output943,718 tokens
Thu Sep 03 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Sonnet 4.6 and Muse Spark 1.3 support multimodal inputs.

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

Claude Sonnet 4.6

Text
Images
Audio
Video

Muse Spark 1.3

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 4.6

Proprietary

Closed source

Muse Spark 1.3

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Sonnet 4.6 was released on 2026-02-17, while Muse Spark 1.3 was released on 2026-09-02.

Muse Spark 1.3 is 7 months newer than Claude Sonnet 4.6.

Claude Sonnet 4.6

Feb 17, 2026

6 months ago

Muse Spark 1.3

Sep 2, 2026

0 days ago

6mo 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 4.6 is available from Anthropic. Muse Spark 1.3 is available from Meta Model API.

Claude Sonnet 4.6

anthropic logo
Anthropic
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

Muse Spark 1.3

meta logo
Meta
Input Price:Input: $0.10/1MOutput Price:Output: $0.20/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude Sonnet 4.6 and Muse Spark 1.3 side-by-side, then vote on the output you prefer.

Claude Sonnet 4.6
✓ Preferred
Muse Spark 1.3
Open in Playground

FAQ

Common questions about Claude Sonnet 4.6 vs Muse Spark 1.3.

Which is better, Claude Sonnet 4.6 or Muse Spark 1.3?

Muse Spark 1.3 leads the LLM Stats Score 55.4 to 37.3. Claude Sonnet 4.6 is made by Anthropic and Muse Spark 1.3 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 4.6 compare to Muse Spark 1.3 in benchmarks?

Claude Sonnet 4.6 scores Tau2 Telecom: 97.9%, Tau2 Retail: 91.7%, GPQA: 89.9%, MMMLU: 89.3%, SWE-Bench Verified: 79.6%. Muse Spark 1.3 scores MRCR v2 (8-needle): 98.5%, MRCR v2 (8-needle, 512K-1M): 98.1%, DeepSearchQA: 89.4%, Terminal-Bench 2.1: 88.8%, DeepSWE 1.1: 75.4%.

Is Claude Sonnet 4.6 cheaper than Muse Spark 1.3?

Muse Spark 1.3 is 30.0x cheaper for input tokens. Claude Sonnet 4.6 costs $3.00/M input and $15.00/M output via anthropic. Muse Spark 1.3 costs $0.10/M input and $0.20/M output via meta.

What are the context window sizes for Claude Sonnet 4.6 and Muse Spark 1.3?

Claude Sonnet 4.6 supports 200K tokens and Muse Spark 1.3 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 4.6 and Muse Spark 1.3?

Key differences include LLM Stats Score (37.3 vs 55.4), context window (200K vs 1.0M), input pricing ($3.00 vs $0.10/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Sonnet 4.6 and Muse Spark 1.3?

Claude Sonnet 4.6 is developed by Anthropic and Muse Spark 1.3 is developed by Meta.

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