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Claude Haiku 4.5 vs Muse Spark 1.3

Muse Spark 1.3 leads the LLM Stats Score 54.3 to 25.7. Claude Haiku 4.5 and Muse Spark 1.3 cost the same.

Anthropic · Meta · Updated for 2026

Which is better?

Muse Spark 1.3 leads the overall LLM Stats Score 54.3 to 25.7, ranking #6 overall.

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 Haiku 4.5

  • you want predictable pricing at $1.00/M input and $5.00/M output

Choose Muse Spark 1.3

  • overall performance matters — it scores 54.3 and ranks #6 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • 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 Haiku 4.5
Anthropic
Muse Spark 1.3
Meta
Core performance indexes
LLM Stats Score
25.7
#154
54.3
#6
Reasoning
25.3
#152
51.8
#7
Coding
19.6
#102
41.8
#10
Agents
13.5
#93
40.1
#6
Cost, coverage & limits
Benchmark wins
—
—
Input price
$1.00 / M
$1.25 / M
Output price
$5.00 / M
$4.25 / M
Context window
200,000
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Claude Haiku 4.5
Muse Spark 1.3
Tool use
15.5#90
33.7#4
Long context
8.0#88
31.9#1
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

12 reported for Claude Haiku 4.5 · 11 for Muse Spark 1.3

No common benchmarks found

Claude Haiku 4.5 and Muse Spark 1.3don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

For input processing, Claude Haiku 4.5 ($1.00/1M tokens) is 1.3x cheaper than Muse Spark 1.3 ($1.25/1M tokens).

For output processing, Claude Haiku 4.5 ($5.00/1M tokens) is 1.2x more expensive than Muse Spark 1.3 ($4.25/1M tokens).

In conclusion, Claude Haiku 4.5 and Muse Spark 1.3 cost the same.*

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

Lowest available price from all providers
Sun Sep 20 2026 • llm-stats.com
Anthropic
Claude Haiku 4.5
Input tokens$1.00
Output tokens$5.00
Best providerAnthropic
Meta
Muse Spark 1.3
Input tokens$1.25
Output tokens$4.25
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 Haiku 4.5's 200,000 tokens. Muse Spark 1.3 can generate longer responses up to 943,718 tokens, while Claude Haiku 4.5 is limited to 64,000 tokens.

Anthropic
Claude Haiku 4.5
Input200,000 tokens
Output64,000 tokens
Meta
Muse Spark 1.3
Input1,048,576 tokens
Output943,718 tokens
Sun Sep 20 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Haiku 4.5 and Muse Spark 1.3 support multimodal inputs.

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

Claude Haiku 4.5

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 Haiku 4.5

Proprietary

Closed source

Muse Spark 1.3

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Haiku 4.5 was released on 2025-10-15, while Muse Spark 1.3 was released on 2026-09-02.

Muse Spark 1.3 is 11 months newer than Claude Haiku 4.5.

Claude Haiku 4.5

Oct 15, 2025

11 months ago

Muse Spark 1.3

Sep 2, 2026

2 weeks ago

10mo newer

Knowledge Cutoff

When training data ends

Claude Haiku 4.5 has a documented knowledge cutoff of 2025-02-01, while Muse Spark 1.3's cutoff date is not specified.

We can confirm Claude Haiku 4.5's training data extends to 2025-02-01, but cannot make a direct comparison without Muse Spark 1.3's cutoff date.

Claude Haiku 4.5

Feb 2025

Muse Spark 1.3

—

Provider Availability

Claude Haiku 4.5 is available from Anthropic, DeepInfra, Vertex AI. Muse Spark 1.3 is available from Meta Model API.

Claude Haiku 4.5

anthropic logo
Anthropic
Input Price:Input: $1.00/1MOutput Price:Output: $5.00/1M
deepinfra logo
Deepinfra
Input Price:Input: $1.00/1MOutput Price:Output: $5.00/1M
vertex logo
Unknown Organization
Input Price:Input: $1.00/1MOutput Price:Output: $5.00/1M

Muse Spark 1.3

meta logo
Meta
Input Price:Input: $1.25/1MOutput Price:Output: $4.25/1M
* 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 Haiku 4.5 and Muse Spark 1.3 side-by-side, then vote on the output you prefer.

Claude Haiku 4.5
✓ Preferred
Muse Spark 1.3
Open in Playground

FAQ

Common questions about Claude Haiku 4.5 vs Muse Spark 1.3.

Which is better, Claude Haiku 4.5 or Muse Spark 1.3?

Muse Spark 1.3 leads the LLM Stats Score 54.3 to 25.7. Claude Haiku 4.5 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 Haiku 4.5 compare to Muse Spark 1.3 in benchmarks?

Claude Haiku 4.5 scores Tau2 Retail: 83.2%, MMMLU: 83.0%, Tau2 Telecom: 83.0%, AIME 2025: 80.7%, SWE-Bench Verified: 73.3%. 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 Haiku 4.5 cheaper than Muse Spark 1.3?

Claude Haiku 4.5 is 1.3x cheaper for input tokens. Claude Haiku 4.5 costs $1.00/M input and $5.00/M output via anthropic. Muse Spark 1.3 costs $1.25/M input and $4.25/M output via meta.

What are the context window sizes for Claude Haiku 4.5 and Muse Spark 1.3?

Claude Haiku 4.5 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 Haiku 4.5 and Muse Spark 1.3?

Key differences include LLM Stats Score (25.7 vs 54.3), context window (200K vs 1.0M), input pricing ($1.00 vs $1.25/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Haiku 4.5 and Muse Spark 1.3?

Claude Haiku 4.5 is developed by Anthropic and Muse Spark 1.3 is developed by Meta.

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