Smarter agents. Half the tokens. Never tied to one AI. The OS that runs Claude, ChatGPT and Cursor. By the team behind Nova Launcher.
Stockholm, Sweden
Joined October 2026
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Same model. Better harness. +5 points on Terminal-Bench 2.1.
Opus 4.8 in Claude Code: 78.9%
Opus 4.8 in Nova Agent OS: 83.9%
Request access: novaagent.dev
We made Opus 4.8 perform like Fable 5.
Same model. No fine-tuning.
Terminal-Bench 2.1:
Opus 4.8 in Claude Code: 78.9%
Opus 4.8 in Nova Agent OS: 83.9%
Fable 5: 83.8%
Built together with our friends at @modal. The frontier isn't only the model anymore.
novaagentos.ai/news/how-nova…
Save your best model for the hard part.
Nova Agent OS picks a model for each task, shares context across agents and has reviewer agents check the work.
Smarter agents. Half the tokens. Never tied to one AI.
novaagent.dev
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Switch tools. Keep the thread.
Claude Code, Codex and Cursor share one Brain in Nova Agent OS. Your projects, decisions and context stay with you when you switch.
Smarter agents. Half the tokens. Never tied to one AI.
novaagent.dev
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Close the laptop. Your agents keep working.
Nova Agent OS runs Claude Code, Codex and Cursor in the cloud, 24/7. Reviewer agents check the work, and at a usage limit, an open model picks up the same session.
Tools come and go. Your agents shouldn't stop.
novaagent.dev
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Same model. Next-generation results.
On Terminal-Bench 2.1, Claude Opus 4.8 scores 79% on its own and 84% running on Nova. That matches the next-generation frontier model.
No fine-tuning. A shared Brain, reviewer agents and smarter model routing.
novaagent.dev
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Nova Agents retweeted
Nova got Opus 4.8 to edge past Fable 5 on Terminal-Bench 2.1.
Modal Sandboxes let the team decouple Nova’s agent loop and automatic review from tool execution, with fast startup and changes deployed in seconds to keep iteration quick.
The result: 83.9%, up five percentage points from Opus 4.8’s Claude Code baseline and just ahead of Fable 5’s 83.8%.
We made Opus 4.8 perform like Fable 5.
Same model. No fine-tuning.
Terminal-Bench 2.1:
Opus 4.8 in Claude Code: 78.9%
Opus 4.8 in Nova Agent OS: 83.9%
Fable 5: 83.8%
Built together with our friends at @modal. The frontier isn't only the model anymore.
novaagentos.ai/news/how-nova…
Nova Agents retweeted
We made Opus 4.8 perform like Fable 5.
Same model. No fine-tuning.
Terminal-Bench 2.1:
Opus 4.8 in Claude Code: 78.9%
Opus 4.8 in Nova Agent OS: 83.9%
Fable 5: 83.8%
Built together with our friends at @modal. The frontier isn't only the model anymore.
novaagentos.ai/news/how-nova…