TLDRocket
Sign in

Claude Opus 4.8

Model ● Covered in 31 stories Compare ⇄ + Follow

Claude Opus 4.8 is Anthropic's large language model that was positioned as a frontier coding model priced at $5 per million input tokens and $25 per million output tokens. The model has been superseded by Claude Opus 5, which Anthropic released at the same price point while improving security metrics, enabling extended context windows, and activating reasoning capabilities by default, though Opus 4.8 has since faced competitive pressure from lower-cost alternatives including xAI's Grok 4.5 and Chinese models offering comparable coding performance at a fraction of the cost.

Updated 3 August 2026

Specifications

No specifications recorded yet.

Latest developments

Cogent AI Team Releases VR-1: A Frontier Cyber Reasoning Model That Composes and Verifies Enterprise Attack Paths MarkTechPost · 7 hours ago · 5 [AINews] Much ado about Open Weights Latent Space · 6 days ago · 26 Claude Opus 5: The System Card Zvi (Don't Worry About the Vase) · 1 week ago · 2 Introducing Claude Opus 5 Simon Willison · 1 week ago · 47 Meet the New Claude Opus 5: Frontier-Class Agentic Coding and Computer Use at Unchanged Opus Pricing MarkTechPost · 1 week ago · 29 Opus 5 costs a third of the price — and that’s actually the problem The New Stack · 1 week ago · 45 Cursor, Ramp, and Meta are all building model routers — but two have major model ambitions themselves The New Stack · 1 week ago · 40 Cursor Releases Cursor Router: A Request-Level Classifier Delivering Frontier Coding Quality at 30–50% Lower Cost MarkTechPost · 1 week ago · 28

Timeline

Month Quarter Year

Q3 2026

Anthropic releases Claude Opus 5, matching Fable 5 capabilities at half the price Model release

Cursor launches Cursor Router, an AI model classifier that reduces coding task costs by 30-50% through intelligent request routing Feature update

Multiple conflicting podcast episodes report contradictory AI industry developments and announcements Other

Moonshot AI releases Kimi K3, a 2.8 trillion parameter open-weight model achieving frontier-class performance Open source release

Moonshot AI releases Kimi K3, a 2.8 trillion parameter open-weight model with API pricing and delayed weights availability Model release

Moonshot AI releases Kimi K3, a 2.8 trillion-parameter open-weight model competing with frontier American systems Model release

Anthropic restores Claude Fable 5 after US government suspension over cybersecurity concerns Incident

Claude Sonnet 5 Release and Tokenizer Efficiency Comparison with Competitors Model release

Anthropic extends Claude Fable 5 free access through July 19 for paid subscribers Feature update

xAI launches Grok 4.5, an Opus-class large language model developed in partnership with Cursor Model release

Analysis reveals Claude Sonnet 5 has higher effective costs and lower quality than predecessor despite lower per-token pricing Feature update

Fable 5 released and achieves top performance on CursorBench benchmark Model release

Anthropic redeployed Fable 5 AI model with enhanced safety restrictions following government export controls Feature update

Q2 2026

Multiple AI labs release new model variants and agent capabilities Model release

Zhipu releases GLM-5.2 open-weight model achieving performance parity with frontier closed-source models Model release

Anthropic releases Claude Fable 5 model with improved benchmarks and new safety restrictions Model release

Anthropic releases Claude Opus 4.8 with improved agentic capabilities and dynamic workflows Model release

Relationships

Products & technology

The daily briefing

Every AI story that matters, in your inbox by 8am.

TLDRocket reads 60+ sources, removes duplicate coverage, and summarises the day in two minutes. Follow companies and topics for alerts, or get the briefing in Slack. Free, no spam, unsubscribe anytime.