Open-Weight Model Share Surges to 29%, Average Price per Token Holds Steady

As of June 2026, AI Gateway's token volume grew 29% month-over-month, and spend grew 27%. Unlike May, when price per token had spiked by about 20%, this month prices remained flat, showing signs of stabilization.

In particular, the growth of Open-weight models stood out. Token share, which was 11% in April, jumped to 29%, while accounting for less than 4% of total spend—demonstrating overwhelming cost efficiency. DeepSeek took 22.6% of token volume, rising to 3rd place behind Google, and GLM 5.2 also entered the ranks of major models immediately after launch.

Enterprises' model usage strategies are also becoming more sophisticated. Routing optimization is emerging, allocating high-load tasks to low-cost models and high-risk tasks to Frontier models. Anthropic accounted for 61% of total spend, recording over 72% share in high-risk use cases.

By modality, the following leaders were identified.

• Image: OpenAI's GPT Image ranked 1st at 53% (Google Nano Banana at 39%)
• Video: Chinese labs accounted for 2/3 of spend, while xAI's Grok Imagine recorded the highest generation volume at 42%.