AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Claude 2.1 vs Muse Spark 1.1

Anthropic
Claude 2.1
Meta
Muse Spark 1.1
Overview
CompanyAnthropicMeta
Release dateNov 21 2023Jul 9 2026
AccessProprietaryProprietary
Benchmarks
Agentic coding
SWE-Bench Pro
61.5%
Agentic coding
DeepSWE 1.1
53.3%
Agentic terminal coding
Terminal-Bench 2.1
80%
Multi-step tool use
MCP Atlas
88.1%
Professional tool use
JobBench
54.7%
Personal tool use
Toolathlon-Verified
75.6%
Multidisciplinary reasoning
Humanity's Last Exam · with tools
62.1%
Agentic computer use
OSWorld-Verified
80.8%
Agentic financial analysis
Finance Agent v2
57.2%
Chart reasoning
CharXiv Reasoning
88.4%
Visual reasoning
BabyVision
76.3%
Timeline
Release gapClaude 2.1 shipped 961 days before Muse Spark 1.1

Which is better: Claude 2.1 or Muse Spark 1.1?

Claude 2.1 and Muse Spark 1.1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 2.1 shipped 961 days before Muse Spark 1.1, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — Claude 2.1 and Muse Spark 1.1 don't publish scores on any of the same benchmarks.

Frequently asked questions

Claude 2.1 was released by Anthropic on Nov 21 2023.

Muse Spark 1.1 was released by Meta on Jul 9 2026.

Other comparisons