Familyroot · Claude

Claude 4.5

All 4 models in the terminal →

data quality35

first seen 11 Sept 2026

family_01M2A55VME0QCTJS0VM8A0FKBA

Models: 4
First release: 29 Sept 2025
Latest release: 15 Oct 2025
Parameters: —
Artifacts: 0
Providers: 1

Releases

2 dated releases · dot size = best benchmark rank of the member · 2 members without a sourced release date not shown

Members 4

Family members
Model	Params	Context	Openness	Licence	Released	Status	Best rank
Claude Haiku 4.5Anthropic	—	200K	Closed	—	15 Oct 2025	Active	#72 SciCode
Claude Sonnet 4.5Anthropic	—	1M	Closed	—	29 Sept 2025	Active	#54 SciCode
Claude 4.5 HaikuAnthropic	—	—	—	—	—	Active	#11 SWE-bench Multilingual
Claude 4.5 SonnetAnthropic	—	—	—	—	—	Active	#8 SWE-bench Multilingual

Lineage among members 0 relations

Open in Graph →

No lineage relation recorded among these members.

Benchmark progress

SciCodebest #54

Terminal-Benchbest #54

MMMU-Probest #79

τ²-benchbest #105

Artificial Analysis Intelligence Indexbest #115

GPQA Diamondbest #116

Best rank (primary comparability group, current leaderboard) reached by any member released up to each date — lower is better, axis inverted. Ranks are today's ranks, not the ranks at release time.

Aggregates are computed from the members' sourced claims; members without a release date or parameter count are left out of the range and timeline rather than guessed. Methodology →