Claude 1vsMuse Spark 1.2

Claude 1
Muse Spark 1.2
Specifications
Context window
9k
1M
Benchmarks
Agentic coding
DeepSWE 1.1
59.3%
Agentic terminal coding
Terminal-Bench 2.1
82.9%
Overview
CompanyAnthropicMeta
Release dateMar 14 2023Aug 5 2026
AccessProprietaryProprietary

Which is better: Claude 1 or Muse Spark 1.2?

Claude 1 and Muse Spark 1.2 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 1 shipped 1240 days before Muse Spark 1.2, so benchmark comparisons should account for the intervening progress.

Context windows are 9k (Claude 1) vs 1M (Muse Spark 1.2).

Direct benchmark comparisons are unavailable — Claude 1 and Muse Spark 1.2 don't publish scores on any of the same benchmarks.

Frequently asked questions

Claude 1 was released by Anthropic on Mar 14 2023.

Muse Spark 1.2 was released by Meta on Aug 5 2026.

Claude 1 has a 9k context window; Muse Spark 1.2 has 1M.

Other comparisons