Sol
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What is Sol?
OpenAI's middle GPT tier, balancing capability and speed for coding, analysis, and agent work that is more involved than routine requests.
Sol is the middle-capability GPT tier in Orbit's model registry. It sits above Luna and below Astra, offering a stronger choice for coding and reasoning tasks that need more depth without always requiring the frontier tier.
How it relates to Orbit
Orbit's Model Tiers can route a tier to Sol. See Complexity Tiers & Routing for details.
When you would use it
Use Sol when a task needs more capability than Luna but does not justify the highest tier.
Common operations
- Implementing and reviewing moderately complex code changes.
- Working through multi-step analysis or agent tasks that need more than a lightweight model.