OpenAI launched GPT-5.6 for public availability on July 9, 2026, following approval from the Trump administration that ended a roughly two-week government-only limited preview period. Simultaneously, the company unveiled ChatGPT Work — an agent platform combining ChatGPT and Codex capabilities for users without programming backgrounds.
Key takeaways
- GPT-5.6 launches in three tiers: Sol ($5/$30), Terra ($2.50/$15), and Luna ($1/$6) per million input/output tokens
- Sol scores 80 points on the Artificial Analysis Coding Agent Index — 2.8 points above Fable 5 at roughly one-third the cost
- ChatGPT Work integrates with Slack, Gmail, Google Drive, Microsoft 365, and CRM systems
- Desktop users on Mac and Windows, including free-tier users, get immediate access
- Sol on Agents' Last Exam: 52.7% — a 12+ point lead over Fable 5 (40.5%)
Three models, three capability tiers
GPT-5.6 is a three-model family with clearly differentiated capability and price levels. Sol is the flagship — the most expensive and highest-scoring across coding, reasoning, and knowledge-work benchmarks. Terra occupies the middle ground, designed for high-volume workloads. Luna is the fastest and most affordable model in the lineup, optimized for everyday tasks.
| Model | Input | Output | Positioning |
|---|---|---|---|
| Sol | $5 | $30 | flagship |
| Terra | $2.50 | $15 | high-volume |
| Luna | $1 | $6 | everyday tasks |
OpenAI positions this pricing as a response to cost pressure, noting that Terra and Luna outperform Fable 5 at roughly one-sixteenth the price.
On Agents' Last Exam — evaluating long-horizon professional workflows across 55 domains — Sol scored 52.7%, a lead of over 12 percentage points above Fable 5 (40.5%). On the Coding Agent Index, Sol achieved 80 points, surpassing Fable 5 by 2.8 points in less than half the time at around one-third the cost. On BrowseComp, which tests autonomous web browsing, Sol with the ultra setting reached 92.2%.
Beyond standard reasoning modes, OpenAI introduces `max` and `ultra`. Ultra runs four agents in parallel, trading higher token consumption for faster completion of demanding tasks — available to Pro and Enterprise users in ChatGPT Work.
ChatGPT Work: Codex for the non-coder
ChatGPT Work is designed as the intersection of ChatGPT and Codex, targeted at users without programming expertise. The platform connects to Slack, Gmail, Google Drive, Notion, Microsoft 365, calendars, and CRM systems, pulling context from linked apps and files.
Rollout is staged. Desktop users on Mac and Windows — including those on the free plan — get immediate access through the ChatGPT desktop app. On mobile and web, Pro, Enterprise, and Edu subscribers are first. Plus and Business plans are set to receive access "over the next few days" per OpenAI's July 9 announcement.
OpenAI explicitly names Claude Cowork — Anthropic's combination of Claude and Claude Code — as the direct competitor to ChatGPT Work. Gemini Spark from Google is also in the mix, making this a three-way contest among the largest AI labs.
Regulatory delay and clearance
GPT-5.6 was announced on June 26, 2026, but the Trump administration requested a halt to public deployment. For roughly two weeks, the model was available only to government-approved and trusted organizations in a "limited preview." The clearance arrived on July 9, enabling the full global rollout. Sam Altman described GPT-5.6 on X as "the best model we have ever produced."
Why it matters
GPT-5.6 addresses two problems simultaneously: cost pressure and doubts about whether AI agents are genuinely useful in everyday work. Earlier flagship models, including GPT-5.5, faced criticism for high prices relative to the marginal gains over cheaper alternatives. Sol changes that equation: the coding benchmark lead over Fable 5 is real and measurable, while pricing is comparable or lower with strong token efficiency.
ChatGPT Work is a direct bid for the enterprise productivity market. Integrations with Slack, Gmail, and CRM systems signal that the product aspires to be less like a chatbot and more like a second employee — one that reads the context of an entire project and delivers finished artifacts. OpenAI is betting that non-technical users will embrace an assistant built on a coding agent's architecture. Whether the market confirms that bet remains to be seen.
What's next
- Global rollout of ChatGPT Work is targeted for completion within 24 hours of July 9, 2026, per OpenAI
- Plus and Business plans will receive mobile and web access to GPT-5.6 "over the next few days" per the July 9 announcement
- Ultra mode (four parallel agents) remains limited to Pro and Enterprise in ChatGPT Work — no timeline for broader access has been announced
