Anthropic develops the Claude model family for writing, coding, and analysis. Borg offers access to Claude models alongside other providers through its own routing layer.
These are the Anthropic models currently listed as live in the Borg directory. The descriptions below summarize each model's published use cases; the linked model pages give the full account. A lane id is the value you use to select a model directly in the Borg gateway, not a separate model name. Check the linked pages for context windows, reasoning support and any vendor API list prices before choosing a lane for your work.
Claude Haiku 4.5 is the compact, fastest member of Anthropic’s current Claude lineup, released after Sonnet 4 as a cheaper way to run capable coding and tool-use tasks.
Best for Claude Haiku 4.5:
high-volume classification and tagging
quick bug explanations and small code edits
short document extraction
low-latency tool-driven assistants
Borg lane ids: claude-haiku-4-5. Open the model page for its full description, available specifications, vendor price sources, and routing roles.
Claude Opus 4.6 is an earlier flagship Opus release, built for difficult coding, long agent runs, and knowledge work.
Best for Claude Opus 4.6:
maintaining workflows calibrated to Opus 4.6
agentic coding with long tool sequences
large-repository analysis and refactoring
research reports spanning many documents
Borg lane ids: antigravity/claude-opus-4-6-thinking. Open the model page for its full description, available specifications, vendor price sources, and routing roles.
Claude Sonnet 4.6 is a 4.x-generation general-purpose model that improved on Sonnet 4.5 in coding, computer use, long-context reasoning, and agent planning.
Best for Claude Sonnet 4.6:
computer-use workflows in office applications
multi-file code changes with existing prompts
long-context document synthesis
regression comparisons against newer Sonnet versions
Borg lane ids: antigravity/claude-sonnet-4-6. Open the model page for its full description, available specifications, vendor price sources, and routing roles.
How Fusion uses Anthropic
Borg Fusion can route between models in the subscription catalog according to the task and the selected profile. Having a Anthropic lane in the catalog does not mean that every Fusion profile will choose it for every request. No specific routing assignments for Anthropic are published in this catalog. The model pages distinguish published routing roles from use cases, so you can compare options without assuming a benchmark result or a routing guarantee. You can also choose a listed lane directly if you want to control which model handles a request.
FAQ
Which Anthropic models are in Borg?
The table and model details above list the current live Anthropic models in Borg. Each linked page includes the model's lane ids and available specifications. Models awaiting identity review are not shown as live.
How does Fusion use Anthropic?
Fusion profiles select from available lanes depending on the task. Consult each Anthropic model page for its published Fusion roles; a missing role is not evidence that the model cannot be selected directly.
Can I select a Anthropic lane directly?
Yes. Open a Anthropic model page to find its Borg lane ids and the compatible gateway model field. Use the lane id rather than the public page slug when choosing a model directly.
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