Vercel AI Updates: September 23, 2026

1. Drives Give Vercel Sandboxes Persistent Storage That Outlives the Run

Vercel. A Drive is persistent storage mounted as a directory in a Vercel Sandbox and is not tied to a single sandbox, so the same Drive can be reused across runs and instances via Drive.getOrCreate() and the mounts option. The intended uses are preserving an agent’s workspace or on-disk memory and reusing datasets, models, and dependency trees. One read-write mount at a time, but multiple sandboxes can concurrently mount point-in-time read-only snapshots. Limits: four Drives per sandbox, 1 TiB default (1 GiB on Hobby) configurable to 16 TiB, region-pinned with no failover. In iad1, storage is $0.05 per GB-month, reads $0.0015 per GB, writes $0.004 per GB. Source

2. Claude Opus 5.5 Reached AI Gateway on Launch Day

Vercel. Opus 5.5 is available through AI Gateway, with Vercel citing Anthropic’s claim that it performs at Fable 5.1 level while running roughly 30 percent faster and about 40 percent cheaper than Opus 5. The changelog points at agentic coding, long-running agent tasks, and knowledge work as where the gains concentrate. Source

3. GPT-6 Sol and Luna Landed on AI Gateway the Same Day

Vercel. Both models are callable as openai/gpt-6-sol and openai/gpt-6-luna, priced below GPT-6 Astra while carrying the GPT-6 generation’s improvements in professional work, coding, computer use, factuality, and communication. Sol is positioned for complex professional workflows and sustained agent work. Source