Models
Every frontier model. One teammate.
Henry is model-agnostic. Pick a preset and never think about it again, or choose the exact model and reasoning level, per workspace, changeable anytime.
Presets
Three good defaults, zero tuning
Ultra
Claude Fable 5 · Medium reasoning
Understands what you actually mean with the least hand-holding, and stays sharp on the longest, most complex work. The closest thing to a real teammate.
Smart
Claude Opus 5 · Medium reasoning
Handles most day-to-day work well. Very complex or ambiguous asks land better on Ultra.
Balanced
Claude Sonnet 5 · Medium reasoning
A lot cheaper per turn. The right pick when Henry is a workhorse for high-volume, lower-stakes tasks.
Full catalog
Use whatever model you want
The latest from Anthropic and OpenAI, side by side. Switch per workspace, anytime. Your choice is always explicit, never silently rerouted.
Claude Fable 5
Anthropic's most capable model for demanding reasoning and long-running autonomous work.
~2× cost
GPT-5.6 Sol
OpenAI's flagship GPT-5.6 model.
~15% more
Claude Opus 5
Newest and strongest Opus model for coding, agents, and complex workflows.
Base rate
Claude Opus 4.8
Previous-generation Opus model for coding, agents, and complex workflows.
Base rate
GPT-5.6 Terra
GPT-5.6 tier with strong performance at a lower price than Sol.
~40% cheaper
Claude Sonnet 5
Near-Opus quality on most tasks, faster and cheaper.
~40% cheaper
GPT-5.6 Luna
Efficient GPT-5.6 tier for high-volume work.
~75% cheaper
Grok 4.6
xAI's frontier model, built for long-running agents, agentic coding, and interactive work.
~75% cheaper
Grok 4.5
Previous-generation Grok model, strong on coding, knowledge work, and STEM.
~75% cheaper
Kimi K3
Moonshot AI's open flagship for agentic work and coding, with a huge context window.
~40% cheaper
Kimi K3 Fast
Kimi K3 on a faster serving path — the same model with lower latency at a higher per-token price.
~10% cheaper
Claude Sonnet 4.6
Fast, capable previous-generation Sonnet.
~40% cheaper
Claude Haiku 4.5
Fastest and most economical for simple tasks. Runs without extended thinking.
~80% cheaper
GPT-5.5
Previous-generation OpenAI model, superseded by the GPT-5.6 family.
~15% more
Our philosophy
Your model, your call
Switch anytime
Change models per workspace whenever you like. New frontier models land in the catalog as they ship.
No silent failover
Henry uses the model you picked, full stop. If it's unavailable, you hear about it. You're never quietly served a cheaper model.
Bring your own key
On Enterprise, bill Anthropic or OpenAI usage through your own account instead of Henry's.
Put the frontier to work
Free to start. Hand Henry your first task today.