GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...
Model catalog
Models
Every model in the catalog with source-linked pricing, context limits, provider availability, and published benchmark results.
35 providers
GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series. It is suited for high-volume, latency-sensitive tasks such as chat, classification, and lightweight agentic workflows, providing capable reasoning for...
36 providers
GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks...
36 providers
Top Claude Opus tier for the hardest reasoning, coding, and long-horizon agents
44 providers
Claude workhorse for coding agents, careful analysis, and production cost control
45 providers
| Model | Creator | Inputs | Context | Input | Output | Released | Compare |
|---|---|---|---|---|---|---|---|
| OpenAI: GPT-5.6 Terraopenai/gpt-5.6-terra | 1.05M | $2 | $12 | 2026-07-09 | |||
| OpenAI: GPT-5.6 Lunaopenai/gpt-5.6-luna | 1.05M | $0.2 | $1.2 | 2026-07-09 | |||
| OpenAI: GPT-5.6 Solopenai/gpt-5.6-sol | 1.05M | $2 | $10 | 2026-07-09 | |||
| Claude Opus 4.8anthropic/claude-opus-4-8 | 1M | $5 | $25 | 2026-05-28 | |||
| Claude Sonnet 4.6anthropic/claude-sonnet-4-6 | 1M | $3 | $15 | 2026-02-17 |