OpenAI · 15 verified changes
Official source: OpenAI API changelog
gpt-6-cyber helps investigate vulnerabilities, reproduce them in an authorized test environment and verify fixes. Organizations need Daybreak Red access and approval; OpenAI's Daybreak setup guide covers what to do before the first request.
gpt-image-2.6-sunburst and gpt-image-2.6-flare work in v1/images/generations and v1/images/edits, with adjustable complexity, SVG generation and animated GIF generation. Markup-guided editing is added for supported GPT Image 2.5 and 2.6 models.
Every organization can now connect GPT-Live (gpt-live-1, v1/live/sessions) to a phone number through its SIP provider for outbound calls.
In the Agents API public beta, context compaction now runs in the background by default and may increase token usage; set compaction.async to false for blocking compaction. Sessions can also update their tools: an update replaces the full tool list.
gpt-6-rosalind adds specialized biological reasoning with scientific tool use. Only organizations approved for Rosalind Research through the trusted-access program can use it.
Eligible ChatGPT Pro and Business subscribers can claim up to $500 per month in free OpenAI API credits as a subscription benefit, activated from ChatGPT or the API Platform by linking an API organization they own.
gpt-6.1-terra is a fast, efficient model for visual reasoning, precise computer use and clear writing, available in v1/responses and v1/chat/completions; OpenAI's GPT-6 guide covers prompting and migration.
The Decisions API, which turns text and images into typed answers, is GA with gpt-6-luna. It adds prompt-cache discounts for shared input, images in per-question instructions, structured input_json, and up to 400 questions per request (200 in the beta).
In the Responses API you can choose 12-hour prompt caching, which keeps shared instructions, tools and context cached for hours so later requests get cached-input pricing; 12-hour cache writes cost 2.5x the input token price.
Create a custom voice from a text description via the API or voice Playground and reuse it in GPT-Live sessions; creating a prompt-generated voice is free, speech generation uses regular GPT-Live session billing. Nine new GPT-Live voices were also added.
Use gpt-6.1-sol with service_tier: 'ultrafast' to reduce time between output tokens. Available to all API users subject to rate limits, with global processing and US/EU data residency; OpenAI points to its Ultrafast pricing page for cost.
Usage tiers are now Build, Launch and Grow. Organisations automatically upgrade as total credit purchases reach tier minimums; monthly usage limits and per-model rate limits are documented on the usage-tiers page.
gpt-6.1-sol for complex coding and professional work at a lower cost than GPT-6 Astra. Standard pricing quoted for prompts up to 272K input tokens: $2 input, $0.10 cached input, $2.50 cache write, $10 output per 1M tokens.
Agents in the Agents API can complete tasks in an OpenAI-hosted browser, with website access approvals and sign-in handled by your application.
New reasoning models accepting text and image inputs. Standard pricing quoted for prompts up to 272K input tokens: Sol $2 / $0.20 cached / $10 output, Luna $0.10 / $0.01 cached / $0.50 output per 1M tokens.