Artificial Analysis: Reaching an Intelligence Index score of 30 is now 86 times cheaper than when it was first achieved
Based on v4.3.2 measured results and current pricing, Artificial Analysis found that the per-task cost of reaching an Intelligence Index score of 30 is 86 times lower than when that score was first achieved. GPT-6 Luna (high) reaches 30 at $0.03/task, whereas Claude Sonnet 4.6 cost $2.49/task when it first reached 30 in February 2026. Reaching 20 is about 123 times cheaper than roughly 13 months ago, and reaching 40 is about 33 times cheaper than roughly 5 months ago. Claude Haiku 5.5 (xhigh) reaches 41 at $0.12/task, making it the cheapest model to reach 40. The highest measured score rose from 21 to 58 within a year, at roughly 11 times the cost, with Claude Opus 5.5 at $5.98/task.
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AI score 61
Artificial Analysis compares the per-task cost of models from different periods using the same index threshold, showing how fast prices fall for the same level of intelligence.
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Body
Once Intelligence Index thresholds are reached, the cost of accessing that level of intelligence reduces fast. Reaching 30 on the Intelligence Index now costs 86x less per task than when first reached
Existing intelligence thresholds have become cheaper to reach, while the highest-scoring model costs more than the highest-scoring from one year ago.
Key takeaways:
➤ Reaching 20 is 123x cheaper than ~13 months ago; reaching 40 is 33x cheaper than ~5 months ago: measured models first reached these thresholds in September 2025 and May 2026.
➤ GPT-6 Luna (high) reaches 30 for $0.03/task: @OpenAI's model is 86x cheaper per task than @AnthropicAI's Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort), which first reached 30 in February 2026 at $2.49/task.
➤ Claude Haiku 5.5 (xhigh) is now cheapest to reach 40: it scores 41 at $0.12/task, 5% below GPT-6.1 Sol (low).
➤ Reaching 50 is 18x cheaper than when first reached: GPT-6.1 Sol (high) reaches it for $0.32/task.
➤ The highest measured score has risen from 21 to 58 in a year, at ~11x the cost: Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback) costs $5.98/task.
As of October 20, 2026, using measured v4.3.2 results and current prices, including for historical models.