Frontier Flux Originals

Original stories by Frontier Flux

Full stories written by Frontier Flux. Listed here are the originals from the last 30 days. The same pieces also appear on the homepage and the morning brief. Each story cites the primary post or outlet.

Stories older than 30 days leave this list for the archive of originals.

Recent originals· 18 stories

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Frontier Flux OriginalOpenAI· 2 min read

OpenAI puts the Codex harness on Agents API public beta

On 10 September 2026 OpenAI Developers said the Agents API is in public beta: a managed Codex harness for cloud agents, with OpenAI handling orchestration, long-running sessions, and context management. OpenAI says there is no extra Agents API fee beyond tokens and tools.

Abstract dark field with cyan loop paths and nested session rings, AI-generated
Frontier Flux OriginalOther· 2 min read

DeepSeek ships V4.1-Flash MIT weights and API deepseek-flash

DeepSeek released DeepSeek-V4.1-Flash with MIT weights on Hugging Face and API id deepseek-flash. The lab describes a 552B MoE Causal Encoder-Decoder that activates 8B parameters on prefill and 16B on decode, plus a 890-byte global KV cache per token.

Abstract cyan rings and stacked planes on a dark field, AI-generated
Frontier Flux OriginalOpenAI· 2 min read

OpenAI ships ChatGPT Images 2.5 with API Flare and Sunburst

On 8 September 2026 OpenAI said ChatGPT Images 2.5 is rolling out to all ChatGPT, ChatGPT Work, and Codex users, with two API models: GPT-Image-2.5 Flare and GPT-Image-2.5 Sunburst. The lab reports up to 50% lower generation latency versus Images 2.0, plus Sketch, templates, and on-image comments in ChatGPT.

Abstract dark field with a cyan flare path and amber sunburst lattice, AI-generated
Frontier Flux OriginalOpenAI· 2 min read

OpenAI reports a Navier-Stokes singularity proof from an unnamed next-gen model

On 8 September 2026 OpenAI published a research note saying a group of agents, using an unnamed internal model it describes as significantly more capable than GPT-6 Astra, produced an analytical proof and a Lean formalization that three-dimensional incompressible Navier-Stokes can develop a singularity in finite time. The company says it does not intend to claim the Clay Millennium Prize.

Abstract teal and amber vortex spiraling over a dark navy field
Frontier Flux OriginalOpenAI· 2 min read

Pachocki: no lab is ready to scale at maximum speed

On 6 September 2026 OpenAI chief scientist Jakub Pachocki published An Alien Mind. He writes that no lab has solved alignment and monitoring enough to keep scaling at maximum speed for much longer, and he hopes voluntary slowdowns become common until shared safety bars exist.

Abstract dark field with a cyan lattice and an amber restraint bar, AI-generated
Frontier Flux OriginalOpenAI· 3 min read

OpenAI rolls GPT-6 Astra to Pro, Enterprise, and the API

On 4 September 2026 OpenAI said GPT-6 Astra is now available to Pro, Enterprise, and Business Premium users in ChatGPT Work and Codex, and live in the API. Plus and remaining Business users might wait a few more days. The lab calls Astra its most capable broadly deployed model and its first Critical cybersecurity model under the Preparedness Framework.

Abstract dark field with cyan access lanes and a gated amber lattice, AI-generated
Frontier Flux OriginalOther· 2 min read

IFM ships K2 Horizon: six open-weight models, 0.9B to 375B-A23B

On 3 September 2026 the Institute of Foundation Models released K2 Horizon, a six-model fleet from 0.9B to 375B-A23B, with Apache 2.0 Hub tags. IFM says the 0.9B, 3.7B, and 7B models set size-class state of the art. The 375B card says the final checkpoint is live while some data and training code still will be released.

Abstract dark field with cyan nested scale planes and faint routing arcs, AI-generated
Frontier Flux OriginalMeta· 2 min read

Meta launches Muse Voice Transcribe: streaming ASR and 20-plus-speaker diarization

On 1 September 2026 Meta Superintelligence Labs launched Muse Voice Transcribe, its first real-time audio perception model, with streaming ASR, 20-plus-speaker diarization, and endpointing. It is live on the Meta Model API, Meta AI for Mac, and Muse Code. Rankings Meta cites are as of that date.

Abstract dark field with cyan audio waveforms splitting into stacked speaker ribbons, AI-generated

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