GPT 6.1 is OpenAI’s latest model update in the GPT-6 series, introduced as GPT-6.1 Sol on September 29, 2026. It is designed for complex coding, computer-use tasks, document analysis and multi-step professional workflows, while offering lower API pricing than OpenAI’s flagship GPT-6 Astra.
GPT 6.1 Sol: What Is It?
The official API model name is gpt-6.1-sol. It accepts text and image inputs, produces text output and supports different reasoning levels. OpenAI positions the model as an option for demanding professional and agentic workloads.
What’s New in GPT 6.1?
GPT 6.1 builds on GPT-6 Sol with improvements across coding, document understanding, computer use and factual accuracy.OpenAI says the model is better at writing and debugging code, working with complex documents and completing multi-step workflows.
On OpenAI’s difficult factuality evaluation, responses containing at least one factual error fell from 11.4% with GPT-6 Sol to 7.7% with GPT-6.1 Sol at low reasoning effort. This is an internal evaluation result and does not mean the model is error-free.
The Open Ai new update also focuses on following user intent, communicating limitations and maintaining safety constraints during challenging tasks.
GPT 6.1 Features and Capabilities
GPT 6.1 is built primarily for tasks that require reasoning, tools and longer workflows rather than simple everyday questions.
Key Capabilities of GPT 6.1
GPT 6.1 is designed for complex workflows that combine reasoning, coding, documents, tools and long-context tasks.
Coding
Writing, debugging and working through complex software-development tasks.
Computer Use
Supporting compatible computer-use workflows through the Responses API.
Document Analysis
Processing complex documents, tables, charts and other detailed information.
Professional Workflows
Supporting sales, marketing, operations, finance, HR and customer-support workflows when connected to appropriate tools.
Developer Tools
Supporting function calling, structured outputs, web search, file search, code interpreter, image generation, hosted shell and MCP.
Token Context Window
GPT 6.1 supports a 1.05 million-token context window and up to 128,000 output tokens, giving developers substantial room for long documents and multi-step tasks.
Is GPT 6.1 Available in India?
For people searching Chat GPT 6.1 India, availability depends on how they access the model. OpenAI says GPT-6.1 Sol is available through its API and to eligible paid users through ChatGPT Work and Codex. It is not currently available in regular ChatGPT conversations. Access can also vary based on the user’s plan, workspace settings and rollout status.
The Open Ai new update is particularly relevant for Indian developers and businesses working with coding, document analysis, automation and tool-based workflows. For users looking to integrate the model into applications, the API provides a way to use its capabilities beyond the standard ChatGPT interface.
How Much Does GPT 6.1 Cost?
GPT 6.1 API pricing is based on tokens processed by the model. OpenAI lists the following standard rates per one million tokens:
| Usage | Price |
|---|---|
| Input | $2.00 |
| Cached input | $0.10 |
| Cache writes | $2.50 |
| Output | $10.00 |
OpenAI also lists different pricing for very large prompts, Fast mode, Batch and Flex processing.
ChatGPT Work and Codex access follows the allowances and rules associated with the relevant plan rather than the direct API pricing above.
GPT 6.1 vs Previous Models
Compared with GPT-6 Sol, GPT 6.1 is positioned for stronger performance on demanding professional and agentic tasks. Compared with GPT-6 Astra, it offers a lower-cost option for workloads that do not require the highest level of performance.
For businesses, choosing a model should depend on the workload. Testing representative tasks can help compare quality, speed and total cost before deploying it widely.
What Does GPT 6.1 Mean for Users?
For Chat GPT 6.1 India users and developers, the most practical significance is the model’s focus on advanced workflows rather than basic conversational use.
A business application could use the API to search approved files, analyse a customer case, work with software tools and prepare a response for human review. Developers can also use its long context window for large technical or business documents.
However, GPT 6.1 should not be treated as an autonomous decision-maker. Important legal, financial, medical, technical and customer-facing outputs should still receive appropriate human review.
FAQs
The official API identifier is gpt-6.1-sol.
The API is paid according to token usage. Access through ChatGPT Work and Codex depends on the eligible plan and its usage rules.
Yes. OpenAI lists text and image inputs with text output. Audio and video inputs are not supported by this model.