ChatGPT
Gain production-grade API access to OpenAI’s flagship GPT-5.6 model suite. Moving beyond a one-size-fits-all design, GPT-5.6 introduces a clear tiered architecture featuring Sol (Flagship Reasoning), Terra (Balanced Workhorse), and Luna (Lightweight Speedster). GPT-5.6 Sol introduces breakthrough capabilities like Max Reasoning effort and Parallel Subagents, enabling the model to break down and execute ultra-complex coding, cybersecurity tasks, and deep analytical workflows in parallel.
All Models
GPT 6.1 Sol Economy
GPT 6.1 Sol Economy offers an ultra-low-cost deployment channel for OpenAI's latest GPT-6.1 Sol architecture. Delivering near-Astra level reasoning, agentic code synthesis, and multi-step tool execution, this Economy channel is specifically optimized for extreme cost reduction. While maintaining the core intelligence of the Sol architecture, it operates with lower concurrency priority and dynamic stability limits compared to the standard Official channel. It is the ideal choice for developers driving background batch processing, automated code testing, non-urgent document analysis, and large-scale asynchronous LLM pipelines where unit economics are paramount.
GPT 6 Sol Economy
GPT-6 Sol is OpenAI's cost-efficient, high-performance foundation model in the GPT-6 family, designed to balance flagship-tier intelligence with frontier efficiency. Positioned directly below GPT-6 Astra, Sol excels at long-horizon software engineering, agentic workflow orchestration, and native computer use while dramatically reducing output errors and API operational costs.
GPT 6 Astra Economy
GPT-6 Astra is OpenAI's flagship frontier model engineered for long-horizon, complex end-to-end enterprise workflows. Representing a major generational leap toward agentic intelligence, Astra integrates deep multi-step reasoning, advanced software engineering, and native computer-use capabilities to navigate software interfaces and execute multi-application workflows directly via GUI. Powered by symbolic world modeling and dynamic course-correction, it can break open-ended goals into actionable steps, handle ambiguous edge cases, and execute complex operations across unstructured environments. Setting new benchmarks on ARC-AGI-3 as well as complex financial, scientific, and coding tasks, GPT-6 Astra is built for enterprise agent orchestration, autonomous software development, financial intelligence, and complex legal/business decision support.
GPT 5.5 Economy
GPT-5.5 is a frontier model released by OpenAI on April 23, 2026. It features a context window of over 1 million tokens—922,000 input tokens and 128,000 output tokens—and supports both text and image inputs. The model scores 88.7% on SWE-bench Verified and 92.4% on MMLU, while reducing hallucinations by 60% compared with GPT-5.4. It excels in agentic coding, computer use, and deep research, while maintaining per-token latency comparable to GPT-5.4.
GPT 5.6 Sol Economy
GPT-5.6 Sol is the flagship model in OpenAI’s GPT-5.6 series. It is specifically designed for complex reasoning, coding, and agentic workflows, and particularly excels at multi-step problem solving, command-line assistance, and high-quality software tasks. This model is recommended when output quality and reliability matter more than raw throughput.
GPT 5.6 Terra Economy
GPT-5.6 Terra is the balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is well suited for everyday coding, reasoning, and agentic workflows, offering a strong balance of quality, latency, and cost for general production use.
ChatGPT Models API Pricing Details
| Model | Pricing (USD) | Our Pricing (USD) | Discount | |
|---|---|---|---|---|
| GPT 6.1 Sol Economy | $2/M Tokens | Start from$0.2/M Tokens | -90% | |
| GPT 6 Sol Economy | $2/M Tokens | Start from$0.2/M Tokens | -90% | |
| GPT 6 Astra Economy | $10/M Tokens | Start from$1/M Tokens | -90% | |
| GPT 5.5 Economy | $5/M Tokens | Start from$0.5/M Tokens | -90% | |
| GPT 5.6 Sol Economy | $5/M Tokens | Start from$0.5/M Tokens | -90% | |
| GPT 5.6 Terra Economy | $2/M Tokens | Start from$0.2/M Tokens | -90% |