OEIS Open (Epoch AI)

Find the rule behind open integer sequences from the OEIS and extend them. Share solved. Data: Epoch AI, CC BY.

3models

–Open Index weight

–last updated

epoch-taskspublisher

Higher is better · best effort per model

full table below

#	Model	Effort	Score	Cost / task	Harness
1	Opus 4.8	high	29.9%	–	Epoch AI
2	GPT-5.5	medium	26.2%	–	Epoch AI
3	Gemini 3.5 Flash	high	22.2%	–	Epoch AI