Claude 1vsMuse Spark 1.2
Claude 1 | Muse Spark 1.2 | |
|---|---|---|
| Specifications | ||
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view. | 9k | 1M |
| BenchmarksPublished by one model only | ||
DeepSWE 1.1Agentic coding — Artificial Analysis' independent test of deep, agentic software-engineering work — the AI has to plan and carry out substantial coding tasks end to end. (Version 1.1 of the test.) Higher is better. | — | 59.3% |
Terminal-Bench 2.1Agentic terminal coding — Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better. | — | 82.9% |
Arena Elo (Text)Community preference — Real people chat with two anonymous AIs side by side and vote for the answer they prefer. Votes become a chess-style Elo rating on arena.ai — it measures which AI people actually like, not test scores. Higher is better. | — | 1498 |
Arena Elo (Code)Community preference (code) — Like the text arena, but people vote on which AI writes better code. The votes become a chess-style Elo rating on arena.ai. Higher is better. | — | 1535 |
| Overview | ||
| Company | Anthropic | Meta |
| Release date | Mar 14 2023 | Aug 5 2026 |
| Access | Proprietary | Proprietary |
Frequently asked questions
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.
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
Claude 1vsGPT-5.6-CyberMuse Spark 1.2vsGPT-5.6-CyberClaude 1vsGemini 3.7 FlashMuse Spark 1.2vsGemini 3.7 FlashClaude 1vsGrok 4.6Muse Spark 1.2vsGrok 4.6Claude 1vsDeepSeek-V4-Pro-0813Muse Spark 1.2vsDeepSeek-V4-Pro-0813Claude 1vsMistral Medium 3.5Muse Spark 1.2vsMistral Medium 3.5Claude 1vsKimi K3Muse Spark 1.2vsKimi K3