SIA
A modular, open-source system designed for recursive self improvement
FEATURED
Open source projects
SIA: Self Improving AI
SIA is the core open-source agent developed by Hexo Labs. It is designed to structure feedback loops that enable continuous improvement. The agent generates hypotheses, runs experiments, evaluates outcomes, and updates its approach based on results. Over time, performance compounds.
Key capabilities:
Harness Improvement
Weights improvement
LongCoT
LongCoT is a benchmark for measuring how well frontier LLMs can sustain coherent reasoning across long-horizon chains of thought. The benchmark contains ~2,500 expert-designed problems across five domains (logic, computer science, chemistry, chess, mathematics) to isolate and directly measure this.
Key capabilities:
Reasoning persistence
Multi-domain evaluation
SIA: Self Improving AI
SIA is the self improving AI framework developed by Hexo Labs. It is designed to structure feedback loops that enable recursive self improvement. This is the first self improvement framework designed to self improve not just its own harness, but also its own underlying weights.
Key capabilities:
Harness Improvement
Weights improvement
LongCoT
LongCoT is a benchmark for measuring how well frontier LLMs can sustain coherent reasoning across long-horizon chains of thought. The benchmark contains ~2,500 expert-designed problems across five domains (logic, computer science, chemistry, chess, mathematics) to isolate and directly measure this.
Key capabilities:
Reasoning persistence
Multi-domain evaluation
SIA: Self Improving AI
SIA is the core open-source agent developed by Hexo Labs. It is designed to structure feedback loops that enable continuous improvement. The agent generates hypotheses, runs experiments, evaluates outcomes, and updates its approach based on results. Over time, performance compounds.
Key capabilities:
Harness Improvement
Weights improvement
LongCoT
LongCoT is a benchmark for measuring how well frontier LLMs can sustain coherent reasoning across long-horizon chains of thought. The benchmark contains ~2,500 expert-designed problems across five domains (logic, computer science, chemistry, chess, mathematics) to isolate and directly measure this.
Key capabilities:
Reasoning persistence
Multi-domain evaluation
SIA: Self Improving AI
SIA is the core open-source agent developed by Hexo Labs. It is designed to structure feedback loops that enable continuous improvement. The agent generates hypotheses, runs experiments, evaluates outcomes, and updates its approach based on results. Over time, performance compounds.
Key capabilities:
Harness Improvement
Weights improvement
LongCoT
LongCoT is a benchmark for measuring how well frontier LLMs can sustain coherent reasoning across long-horizon chains of thought. The benchmark contains ~2,500 expert-designed problems across five domains (logic, computer science, chemistry, chess, mathematics) to isolate and directly measure this.
Key capabilities:
Reasoning persistence
Multi-domain evaluation
Work on humanity’s last invention
Work on humanity’s last invention
Work on humanity’s last invention
Hexo Labs is building the machine that builds every future machine. The machine that turns the wheels of evolution, creates a future of abundance for all and accelerates evolutionary progress.
Work on humanity’s last invention
Hexo Labs is building the machine that builds every future machine. The machine that turns the wheels of evolution, creates a future of abundance for all and accelerates evolutionary progress.




