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OpenAI says roughly 10,000 AI agents produced a proof that the Navier-Stokes equations can blow up in finite time. The Clay Mathematics Institute has not accepted the result and still lists the problem as unsolved, and the NYU mathematician whose related work came first says OpenAI took that route only after hearing about it.
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GPT-6 Astra cleared every chamber of Valve's Portal on its own, 3,336 tool calls and $571.18 in tokens.
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---CLAUDE---
score: 92
trend: up
change: +1
+ Fable 5.1 launched September 1 across the major clouds, with cache reads cut 75% to $0.25 per million tokens.
+ Eligible customers can use Fable 5 and 5.1 with zero data retention while Enterprise Frontier Safeguards is being prepared.
- EFS rolls out later this fall, with customer storage costs and human review remaining the buyer's responsibility.
- Anthropic's August 31 security update still described its incident investigation and independent METR review as unfinished.
---CHATGPT---
score: 86
trend: up
change: +2
+ GPT-6 Astra began rolling out September 3 for coding, research, computer use and complex business tasks.
+ Astra led the September 5 Code Arena WebDev table, providing external evidence beyond OpenAI's launch benchmarks.
- Access remains phased, and the launch release notes explicitly say Astra is not yet generally available.
- OpenAI's system card records weaker reasoning monitorability despite improved compliance with safety restrictions.
---GEMINI---
score: 84
trend: up
change: +5
+ Gemini 3.8 Flash reached general availability September 2 with a one-million-token context window.
+ Introductory pricing is $0.75 per million input tokens and $3.75 per million output tokens through December 31.
- Standard token prices double January 1, and Google says complex tasks can consume more tokens than with 3.7 Flash.
- Flash Cyber is restricted to trusted defenders through Fairwind, so its capabilities do not belong in a general-access comparison.
---MISTRAL---
score: 81
trend: down
change: -1
+ Vibe Enterprise remains excluded from model training by default, with organization controls for administrators.
+ Standard Vibe and API customers can opt out of training without buying Enterprise.
- Vibe and API training controls are separate, adding a configuration check for businesses using both products.
- Zero data retention requires approval and covers eligible stateless API calls, excluding Vibe chats and stateful agents.
---GLM---
score: 57
trend: up
change: +3
+ First-half 2026 revenue reached RMB954 million, up 399.7%, with platform and API services contributing 86.5%.
+ GLM-5.3-Flash weights remain available under MIT, preserving a permissive route to independent deployment.
- First-half adjusted net loss widened 12.1% to RMB1.964 billion, despite the decline in reported net loss.
- Gross margin fell to 26.4% from 50.0%, limiting the financial benefit of rapid API growth.
---QWEN---
score: 56
trend: up
change: +4
+ Qwen3.8-Max-0902 shipped September 2 through Alibaba Cloud with a one-million-token context window.
+ The model placed fourth in the September 5 Code Arena WebDev table, with its result still marked preliminary.
+ The current Max weight license exempts qualifying internal use from its separate commercial-license requirement.
- Specified model-service and AI work-assistant businesses above $50 million in annual group revenue need a separate license.
---MUSE---
score: 54
trend: up
change: +6
+ Muse Spark 1.3 shipped September 2 in Muse Code and Meta Model API for longer coding and agent tasks.
+ Published token rates remain $1.25 per million input tokens and $4.25 per million output tokens.
- The live benchmark page differs from the September 2 snapshot, so the earlier 42% task-cost advantage is not a current comparison.
- Meta still lists Spark open weights as future work, leaving the new release dependent on hosted access.
---KIMI---
score: 41
trend: up
change: +2
+ Moonshot reportedly filed confidentially for a Hong Kong IPO targeting about $3 billion, improving its potential financing options.
+ K3's license exempts internal use and access through official products or certified inference partners from specified commercial conditions.
- The IPO proceeds and proposed cloud revenue-sharing deals remain uncompleted transactions.
- K3's published repository is 1.56TB, keeping independent deployment a substantial infrastructure commitment.
---GROK---
score: 35
trend: up
change: +4
+ Grok Bot for Enterprise launched September 3 with access, network and audit controls.
+ Grok and Cursor Enterprise customers received a two-week trial covering colleagues without existing seats.
+ SpaceXAI published a September 1 account of external biological safety testing, adding evidence for specialist procurement reviews.
- Trial access and narrow safety evaluations do not establish long-term operating cost or safety across business workflows.
---DEEPSEEK---
score: 17
trend: up
change: +1
+ DeepSeek's status page reported no incidents from August 29 through September 6, a limited positive reliability signal.
+ Current documentation supports Responses and Anthropic API formats, reducing integration work for existing agent tools.
- V4-Flash still costs $0.44 per million uncached input tokens and $1.32 per million output tokens during weekday peak hours.
- Off-peak rates are half those prices, leaving cost dependent on scheduling, while the vision endpoint remains experimental.
Tools & Workflows
Claude Code 2.1.261 added /skill-doctor on September 4, 2026. It reports which loaded skills a session never invoked and what each costs in context, after Anthropic said it removed over 80% of the product's system prompt with no measurable loss on its coding evaluations.
Tools & Workflows
Build a persistent development workspace with Herdr, organize a local server and a coding agent into separate panes, and control them from a shell using the IDs returned by the tool. This intermediate tutorial includes runnable examples, interface screenshots, output checks, and common mistakes. Learn what survives a terminal disconnect, what must restart after a reboot, and how a remote host lets your work continue when your laptop sleeps.
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AI News · 13 min read
