Opus 4.8
Model ● Covered in 13 stories + Follow
Opus 4.8 is an Anthropic language model referenced in recent coverage alongside other frontier and open-weight options. The reporting indicates it accounted for 28.0% of Anthropic model spend in July 2026, but Anthropic faced pressure on adoption and pricing as cheaper alternatives gained traction. It has also been used as a benchmark in other companies’ releases, including visual tests where DeepSeek’s multimodal model reportedly beat Opus 4.8, and comparative coverage from real-world outcome evaluations where it produced functional artifacts without achieving specified outcomes.
Updated 16 September 2026
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Latest developments
Anthropic’s best AI model struggles to attract users as cheaper tools thrive
Simon Willison’s Weblog · 3 weeks ago ·
44
DeepSeek debuts multimodal language model competitive with Opus 4.8
SiliconANGLE · 3 weeks ago ·
34
Hark previews its browser use agent for completing tasks
TechCrunch · 1 month ago ·
52
Anthropic's Opus 5 is about token efficiency, not a capability leap
Ars Technica · 1 month ago ·
14
Anthropic launches Opus 5
TechCrunch · 1 month ago ·
13
China’s Low-Priced Z.ai Model Is Exposing Costly Coder Habits
IEEE Spectrum · 1 month ago ·
13
Kimi K3 tops Arena’s coding leaderboard — and it’s open-weight
The New Stack · 2 months ago ·
52
Moonshot’s upcoming Kimi 3 is expected to close the gap with Anthropic’s Opus 4.8
TechCrunch · 2 months ago ·
16
August 2026
Hark unveils Handoff, a browser-use agent for automating web-based tasks Product launch
- Anthropic’s best AI model struggles to attract users as cheaper tools thrive
- DeepSeek debuts multimodal language model competitive with Opus 4.8
- Hark previews its browser use agent for completing tasks
July 2026
Anthropic releases Claude Opus 5, matching Fable 5 capabilities at half the price Model release
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 released Kimi K3, an open-weight large language model Model release
OpenAI releases GPT-5.6 model family with three tiers (Luna, Terra, Sol) and new multi-agent capabilities Model release
Claude Fable 5 Achieves 16.1% Automation Rate on Remote Labor Benchmark Benchmark result
- Anthropic's Opus 5 is about token efficiency, not a capability leap
- Anthropic launches Opus 5
- China’s Low-Priced Z.ai Model Is Exposing Costly Coder Habits
- Kimi K3 tops Arena’s coding leaderboard — and it’s open-weight
- Moonshot’s upcoming Kimi 3 is expected to close the gap with Anthropic’s Opus 4.8
- datasette code-frequency chart on GitHub
- Fable 5 Vs Opus 4.8: Outcomes-Based Assessments Are A Massive Warning For Frontier AI Labs
- [AINews] OpenAI launches GPT 5.6 Sol/Terra/Luna, Codex becomes ChatGPT superapp
- Claude Fable 5 Scores 16.1% on Remote Labor Index
June 2026
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Competition
- DeepSeek competes with this model · 1 source