Anthropic
Claude Opus 4.5
Anthropic's November 24, 2025 Opus model remains active as a legacy option. It accepts text and images and produces text, with a 200K-token context window, up to 64K output and extended thinking. Standard Claude API rates are $5/$25 per MTok (input/output). Current documentation recommends Opus 5 for new Opus workloads.
200K tokens
Multimodal
Max
- Provider
- Anthropic
- Context
- 200KCatalog · As of Aug 11, 2026Stale · 31d old
- yno subscription tier
- Max
- Released
- Nov 24, 2025
- Speed
- Medium
- Reasoning
- Expert
- Modality
- Multimodal
Benchmarks
Quality
- AA Intelligence Index
- LiveCodeBench
- 73.8%Artificial Analysis · Date unknownAge unknown
- GPQA Diamond
- 81%Artificial Analysis · Date unknownAge unknown
Speed and latency
- Output speed
API pricing
- API input cost
- API output cost
Benchmark variant: Claude Opus 4.5 (Non-reasoning)
AA data retrieved Sep 11, 2026 · Artificial Analysis
Indexes use points; evaluations use accuracy percentages. API measurements do not measure yno application performance. Methodology
Capabilities
- Text Generation
- Code
- Reasoning
- Research
- Writing
- Vision
Use cases
- Software architecture
- Deep research
- Technical writing
- Complex analysis
Strengths
- Text and image input
- Extended thinking
- 200K context / 64K output
- Code architecture
Best for
Technical teams building complex software systems or conducting deep research
Use Claude Opus 4.5 in yno.ai
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Related models
Frequently asked
- What is Claude Opus 4.5?
- Anthropic's November 24, 2025 Opus model remains active as a legacy option. It accepts text and images and produces text, with a 200K-token context window, up to 64K output and extended thinking. Standard Claude API rates are $5/$25 per MTok (input/output). Current documentation recommends Opus 5 for new Opus workloads.
- How much does Claude Opus 4.5 cost in yno.ai?
- Claude Opus 4.5 is available on the Max tier of yno.ai.
- What can Claude Opus 4.5 do?
- Claude Opus 4.5 is best for Technical teams building complex software systems or conducting deep research. Its main capabilities include Text Generation, Code, Reasoning, Research, Writing, Vision.
- How does Claude Opus 4.5 compare to other models?
- Claude Opus 4.5 excels at Text and image input and is recommended for Software architecture, Deep research, Technical writing, Complex analysis. See related models below.
- How do I use Claude Opus 4.5 in yno.ai?
- Sign up for yno.ai, select Claude Opus 4.5 from the model picker, and start chatting.