Models & Assistants
GPT-6.1 Terra is OpenAI's new fast, affordable model for computer use
GPT-6.1 Terra launches at $1/$5 per million tokens: half the cost of Sol, 3x faster than Astra, with major gains in coding and computer use.
Topic
Openai API
26 posts about Openai API from Simon Carter.
Developer Tools & APIs
OpenAI's Decisions API is now generally available
OpenAI's Decisions API reached GA on 22 October 2026, returning typed answers up to 10× faster than the Responses API via POST /v1/decisions.
Developer Tools & APIs
OpenAI removes gpt-4, o1, o3-mini and dozens more from the API on 23 October 2026
Over 25 model IDs shut down permanently on 23 October 2026. Here's what replaces each one and what it will cost you.
Developer Tools & APIs
OpenAI extends prompt caching to 12 hours for long-running agents and coding workloads
OpenAI's 12-hour prompt cache cuts repeated-context costs in the API, Codex, and ChatGPT Work for agents that go quiet between turns.
Developer Tools & APIs
GPT-6 Astra Ultrafast billing starts 5 October 2026 at $60/M input and $300/M output tokens
OpenAI's Ultrafast service tier for GPT-6 Astra exits its grace period on 5 October 2026. Here's what you'll pay and what to expect.
Security & Governance
OpenAI's textGrain embeds invisible watermarks in AI text: here's what changes for you
OpenAI's textGrain watermarks AI-generated text statistically. API opt-in opens 5 October 2026; EU ChatGPT and Codex users get it automatically.
Models & Assistants
GPT-6.1 Sol launches with near-flagship performance at a fifth of the price
GPT-6.1 Sol brings near-Astra benchmark results to the API and ChatGPT Work at $2/M input and $0.10/M cached tokens.
Developer Tools & APIs
gpt-5.4-cyber has been removed from the OpenAI API: what you need to do now
The gpt-5.4-cyber model ID was removed from the OpenAI API on 1 October 2026. Calls to it now return errors. Migrate to gpt-5.6-cyber.
Developer Tools & APIs
OpenAI launches Ultrafast service tier for GPT-6 Astra in the Responses API
OpenAI's Ultrafast tier delivers up to 8× faster token generation for GPT-6 Astra. Available now via service_tier: 'ultrafast'. Billing starts 5 October 2026.
Models & Assistants
GPT-6.1 Sol arrives at one-fifth the cost of Astra, with Ultrafast inference and a new $500 Pro tier
OpenAI's GPT-6.1 Sol offers near-Astra performance at $2/$10 per million tokens. Here's what the pricing and new Pro 500 plan mean for you.
Developer Tools & APIs
OpenAI's Sora 2 Videos API is permanently shut down: with no replacement named
The Sora 2 Videos API closed permanently on 24 September 2026. No successor model exists. Developers must migrate and export data now.
Developer Tools & APIs
OpenAI is retiring gpt-5.4-cyber on 1 October 2026: here's what you need to do
gpt-5.4-cyber is deprecated with a hard removal on 1 October 2026. The replacement is gpt-5.6-cyber, but migration requires Daybreak Red approval.
Developer Tools & APIs
OpenAI opens the Agents API in public beta: giving every developer the same managed harness that powers Codex
The Agents API public beta lets developers spin up long-running cloud agents using OpenAI's own orchestration infrastructure, at no extra fee.
Models & Assistants
GPT-6 Astra is now the default model for ChatGPT Work and Codex: here's what enterprise teams need to know
OpenAI's September 9 post sets GPT-6 Astra as the default for Work and Codex, with benchmark scores, case studies, and an admin-enable requirement.
Models & Assistants
ChatGPT Images 2.5 is here: faster generation, a sketch tool, and two new API models
OpenAI's Images 2.5 replaces 2.0 across all ChatGPT tiers and the API, cutting latency by 50% and adding Sketch, comment editing, and two new model IDs.
Models & Assistants
GPT-6 Astra is now available to all ChatGPT Plus, Pro, Business, and Enterprise users
GPT-6 Astra expands beyond its limited preview to all paid ChatGPT tiers, the OpenAI API, Azure, and AWS Bedrock: with faster computer use and new Codex note-keeping.
Models & Assistants
GPT-6 Astra is here: OpenAI's most capable model yet, and a possible AGI milestone
OpenAI launched GPT-6 Astra on 3 September 2026, with Greg Brockman calling it a generational leap and suggesting it may represent AGI.
Developer Tools & APIs
Two OpenAI shutdowns land on 26 August 2026: o3 leaves ChatGPT and the Assistants API is gone for good
On 26 August 2026, OpenAI removes o3 from ChatGPT's model picker and permanently shuts down the Assistants API. Here's what breaks and what to do.
Security & Governance
OpenAI formally commits to zero data retention for API customers and previews private safety processing
OpenAI reaffirms Zero Data Retention for eligible API customers and previews Private Safety Processing, a cross-interaction safety system launching in September 2026.
Models & Assistants
OpenAI previews Ultrafast: GPT-5.6 Sol at 750 tokens per second, powered by Cerebras
OpenAI's new Ultrafast API tier runs GPT-5.6 Sol up to 14× faster than standard, hitting 750 tokens/sec via Cerebras hardware.
Developer Tools & APIs
OpenAI Assistants API is permanently removed on 26 August 2026: here's what you need to do
OpenAI's Assistants API is gone on 26 August 2026. This is a full architectural migration to the Responses API, not a quick endpoint swap.
Developer Tools & APIs
OpenAI cuts GPT-5.6 Luna pricing by 80% and frames it as the start of something bigger
OpenAI drops Luna API prices to $0.20/$1.20 per million tokens and trims Terra by 20%, calling it the beginning of an 'abundance flywheel' strategy.
Cloud & Infrastructure
GPT-5.5, GPT-5.4, and Codex are now generally available on Amazon Bedrock
OpenAI's frontier models and Codex coding agent hit GA on Amazon Bedrock, with IAM access, VPC isolation, CloudTrail logging, and pay-per-token billing.
Models & Assistants
GPT-Live-1 is here: OpenAI's full-duplex voice model replaces Advanced Voice Mode globally
OpenAI's GPT-Live-1 and GPT-Live-1 mini launch July 8, replacing Advanced Voice Mode with simultaneous listen-and-speak AI powered by GPT-5.5 in the background.
Developer Tools & APIs
OpenAI's GPT-Realtime-2.1 Brings Better Reasoning and 25% Lower Latency to Voice Agents
OpenAI ships gpt-realtime-2.1 and gpt-realtime-2.1-mini with improved reasoning, noise handling, and a 25%+ p95 latency cut across all Realtime voice models.
Developer Tools & APIs
OpenAI Container Sessions Now Billed Per Minute — Short Sessions Get Cheaper from June 2
OpenAI switches container billing to per-minute with a 5-minute minimum from June 2, 2026, cutting costs for sessions under 20 minutes.