GPT-5.6 Sol
GPT-5.6 Sol is a watchlist entry, not a production pick; wait for published weights, API access, pricing, context, and benchmarks before planning a migration.
Use it for
- Teams monitoring GPT-5.6 Sol's release
- MiniMax M2 users deciding whether to wait
- Architecture watchlists for long-context efficiency
Do not use it for
- Production launches that need model access today
- Cost estimates that need sourced token pricing
- Benchmark-led selections that need independent scores
- Availability
- Pre-release
- Family
- GPT-5.6
- Released
- 2026-06-26
- Architecture
- Decoder Only
- Specialization
- general
- Openness
- Proprietary
- License
- ProprietaryCommercial use: conditional
No tracked provider token pricing is available yet.
About
OpenAI's flagship GPT-5.6 model and highest-capability tier in the Sol, Terra, and Luna naming system. GPT-5.6 Sol is built for demanding reasoning, long-horizon coding, agentic workflows, and cybersecurity tasks, introducing max reasoning effort and ultra multi-agent mode. Announced June 26, 2026; available only to select trusted partners in limited preview, with broad availability pending.
GPT-5.6 Sol is a proprietary model in the GPT-5.6 family. The structured metadata tracks multimodal input, reasoning, function calling, tool use, and code execution. No headline benchmark score is tracked for GPT-5.6 Sol yet.
Top use-case fit: coding, agents, and build tasks
Coding
Included by capability and metadata signals in the decision map.
Agents
Included by capability and metadata signals in the decision map.
Vision
Included by capability and metadata signals in the decision map.
Provider price ladder
No tracked provider token pricing is available for this model yet.
Capabilities
Benchmark peer barsfor Coding
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.