gpt-6

GPT-6 is OpenAI's flagship frontier model, representing a step-change in capability over the prior generation — higher scores across every major benchmark, a 1.2M-token context window, and native multimodal support spanning text, images, audio, and video inputs. GPT-6 is positioned as OpenAI's most capable model for complex reasoning, long-context analysis, and agentic workflows requiring sustained multi-step execution. It supports function calling, structured outputs, prompt caching, and streaming, and is available via the OpenAI API.

GPT-6 is priced at $10.00 per million input tokens and $50.00 per million output tokens — OpenAI's highest per-token price, reflecting its position as the most capable model in the lineup. Prompt caching reduces repeated input to $5.00/1M. At 1,000 input + 500 output tokens per call, it costs approximately $0.035 per 1,000 API calls. The Batch API cuts all prices by 50% for async workloads, making GPT-6 more accessible for high-volume offline tasks. For workloads where GPT-6's capability advantage over GPT-5.6 Sol is measurable — complex multi-step reasoning, full-codebase analysis, long-document synthesis — the cost premium is typically justified.

GPT-6 achieves an intelligence score of approximately 98/100 — the highest of any model in the catalog. The 1.2M-token context window enables full-codebase analysis, book-length document processing, and extended multi-turn agent sessions in a single API call. Vision capability covers images and video frames; audio input is supported via the same endpoint.

GPT-6 is best suited to tasks where maximum capability is required and cost is secondary: complex scientific reasoning, full-codebase refactoring, long-document synthesis, advanced agentic workflows, and research tasks requiring sustained multi-step execution. For cost-sensitive production workloads, lower-tier models in OpenAI's lineup deliver strong quality at a fraction of the price. GPT-6's main competitors are frontier-tier models from Anthropic and Google targeting the same high-capability tier. For teams already on OpenAI's API, GPT-6 is the natural upgrade path for tasks where lower-tier model quality is measurably insufficient.