Anthropic's Haiku 5.5 posts ARC-AGI scores at low cost
Per-task pricing under US$0.09 on ARC-AGI-1 and ARC-AGI-2 makes Haiku 5.5 one of the cheaper options to clear the 61% mark on ARC-AGI-2, a benchmark where many larger models struggle. Teams running agent or reasoning workloads at scale can use these numbers to weigh small-model cost against accuracy. Comparisons with other labs' verified scores are available directly from ARC Prize.
Anthropic's Haiku 5.5 was evaluated on ARC-AGI (Verified) by ARC Prize. The model scored 2.8% on ARC-AGI-3 for US$437 via the provider adapter harness and 0.5% for US$388 on the standard harness. It reached 61.3% on ARC-AGI-2 at US$0.085 per task and 89.0% on ARC-AGI-1 at US$0.051 per task. The results position it as competitive for Anthropic's small-model tier.
Haiku 5.5 from @AnthropicAI on ARC-AGI (Verified):
- ARC-AGI-3: 2.8%, $437 (provider adapter harness); 0.5%, $388 (standard harness) - ARC-AGI-2: 61.3%, $0.085/task - ARC-AGI-1: 89.0%, $0.051/task
Haiku 5.5 delivers competitive performance for Anthropic's small-model tier. https://t.co/W7MrXZsSng
