OpenAI introduced GPT-6 Sol and GPT-6 Luna on Tuesday, cutting API prices by up to 50% compared with GPT-5.6 promotional pricing. Box Inc. (NYSE: BOX) CEO Aaron Levie said the cost decline could significantly expand the number of tasks companies can economically automate with AI agents.

The announcements arrive hours after rival Anthropic unveiled Claude Opus 5.5, which costs 40% less to run than its predecessor while improving performance in coding and knowledge work. Both firms are prioritizing cost-per-task efficiency as enterprises shift from chatbots to long-running agentic workflows.

Pricing structure shifts

OpenAI positioned GPT-6 Astra as its highest-performance model, while Sol and Luna target workloads where speed and operating costs outweigh maximum benchmark scores. The company reported that GPT-6 Sol scored 33.2% on AutomationBench at its highest reasoning setting, costing 27 cents per task. In comparison, GPT-6 Astra scored 30.3% at low effort but cost 3.9 times as much per task.

Industry reaction to cost declines

Levie described the simultaneous price reductions by OpenAI and Anthropic as "an insane day in AI" on social media platform X. He argued that the rate at which the cost per task drops in AI is unlike any other type of technology in history.

According to Levie, every time the cost of AI drops, the use cases available for agents increase dramatically. He described this trend as "Jevons paradox applied to agents," suggesting that lower costs lead to broader diffusion of AI in the economy. Specific applications he cited include processing data, scanning code for security issues, reading log data, and managing agent swarms in workflows.

Broader adoption trends

Recent industry data supports the shift toward agentic workflows. In June, Anthropic reported that close to six in 10 survey respondents expected AI to handle a greater share of their work tasks within a year, while more than one-third expected AI to be capable of performing most or nearly all of their work tasks.

Earlier this year, former Tesla Inc. (NASDAQ: TSLA) AI chief and ex-OpenAI researcher Andrej Karpathy said AI agents had dramatically changed his coding workflow, noting he had barely written code since December. He also built "Dobby," an AI assistant that managed smart-home functions, including lighting, climate control, security monitoring and delivery alerts.

Efficiency and error reduction

OpenAI stated that GPT-6 Sol made approximately half as many errors as its predecessor in an internal factuality test based on de-identified user conversations. The company also expanded prompt-caching tools to reduce costs for applications that repeatedly send identical context to the model.

Anthropic adopted a similar strategy, noting that cache reads constitute a majority of costs for agentic and coding workloads. Consequently, Anthropic reduced its cache-read price by 60% from Opus 5.

What the numbers show

The pricing data reveals a strategic bifurcation in model economics. While GPT-6 Sol offers a 50% input cost reduction compared to the previous tier, its output cost also halves, indicating a uniform compression across token types rather than a skew toward input-heavy tasks. Furthermore, the disclosed cost-per-task metric highlights a significant efficiency gap: GPT-6 Sol delivers a higher benchmark score (33.2% vs 30.3%) at roughly one-fourth the cost of GPT-6 Astra (27 cents vs implied ~$1.05 based on the 3.9x multiplier), suggesting that mid-tier models are becoming disproportionately more valuable for automated workflows.

OpenAI design leader Ian Silber has left the artificial intelligence company after more than three years. Silber helped shape key products including ChatGPT and Codex before departing last Friday.

Silber announced his exit on X, stating he spent the last couple of months helping transition the design team. He described his time at OpenAI as an "incredible and unforgettable ride" and expressed confidence in the company's future leadership.

New Venture Plans

Silber plans to team up with former OpenAI employees Joseph Flynn and Thomas Dimson to "build something new." Flynn, a former product designer, and Dimson, a former technical staff member, both left OpenAI earlier this year. The nature of their next venture remains unclear.

Prior to joining OpenAI, Silber worked as a product designer at Global Illumination. He previously held design roles at Artifact, Instagram, and Groupon.

Broader Executive Turnover

Silber's departure contributes to significant executive churn at OpenAI in 2026. Business Insider counted 13 departures this year, with several occurring within the past month.

Key recent exits include:

• Brad Lightcap, chief operating officer, who announced his departure last month to start a new venture.
• Chris Malone, data center chief, who left after a short stint following his March 2025 join date from Meta Platforms and Google.
• Denise Dresser, chief revenue officer, who served for about eight months before being replaced by Dali Rajic.
• Fidji Simo, product and business chief, who stepped down due to chronic illness but continues to advise the company.
• Aleksander Madry, computer scientist, who left earlier this year after nearly three years.

The hiring of Rajic was framed by OpenAI as preparation for a new wave of models expected to reshape organizational operations.

IPO Delay Cited

OpenAI ruled out an initial public offering for 2026. CEO Sam Altman told Fortune that going public now would be an "ill-advised moment" due to unresolved safety concerns and alignment challenges in rapidly advancing artificial intelligence.