GPT-6 Astra is OpenAI's most capable model for complex reasoning, coding, computer use, research, and document creation.
Models
Every model in the catalog with source-linked pricing, context limits, provider availability, and published benchmark results.
Cost-efficient GPT-5.6 model for fast, high-volume workloads
Balanced GPT-5.6 model for capable, cost-efficient everyday work
Frontier GPT-5.6 model for complex professional work, coding, and agentic workflows
Default frontier GPT for coding, computer use, research, and knowledge work
Highest-accuracy GPT-5.5 tier for slower, precision-heavy reasoning and coding
Cheapest GPT-5.4 lane for simple routing, extraction, and bulk automation
Strong small GPT for coding subagents, quick tool use, and high-volume work
Agent-ready GPT for coding and computer-use workflows at a lower cost
Small omni GPT for cheap multimodal assistance and production-scale traffic
| Model | Creator | Inputs | Context | Input | Output | Released | Compare |
|---|---|---|---|---|---|---|---|
| GPT-6 Astraopenai/gpt-6-astra | 1.05M | $10 | $50 | 2026-09-04 | |||
| GPT-5.6 Lunaopenai/gpt-5.6-luna | 1.05M | $0.2 | $1.2 | 2026-07-09 | |||
| GPT-5.6 Terraopenai/gpt-5.6-terra | 1.05M | $2 | $12 | 2026-07-09 | |||
| GPT-5.6 Solopenai/gpt-5.6-sol | 1.05M | $4 | $20 | 2026-07-09 | |||
| GPT-5.5openai/gpt-5.5 | 1.05M | $5 | $30 | 2026-04-23 | |||
| GPT-5.5 Proopenai/gpt-5.5-pro | 1.05M | $30 | $180 | 2026-04-23 | |||
| GPT-5.4 nanoopenai/gpt-5.4-nano | 400K | $0.2 | $1.25 | 2026-03-17 | |||
| GPT-5.4 miniopenai/gpt-5.4-mini | 400K | $0.75 | $4.5 | 2026-03-17 | |||
| GPT-5.4openai/gpt-5.4 | 1.05M | $2.5 | $15 | 2026-03-05 | |||
| GPT-4o miniopenai/gpt-4o-mini | 128K | $0.15 | $0.6 | 2024-07-18 |