Claude Opus 5
The hardest reasoning, coding, and long-horizon agentic tasks.
What are Claude Opus 5's specs and price?
Claude Opus 5, built by Anthropic, ships a 1M-token context window and a 128K-token max output, released 2026-08. It supports text and vision input with a dedicated reasoning mode and costs $30.00 per million blended tokens, the 34th-cheapest of 34 models we track.
Specs
| Context window | 1M tokens |
| Max output | 128K tokens |
| Modalities | text, vision |
| Extended thinking | Yes |
| Released | 2026-08 |
| Knowledge cutoff | 2026-05 |
| Provider | Anthropic |
Verified 2026-08-08 — source.
Where it ranks
Strengths
- Anthropic's strongest reasoning and coding
- 1M-token context
- Extended-thinking mode for complex agentic work
More about Claude Opus 5
FAQ
What is Claude Opus 5's context window?
Claude Opus 5 has a 1M-token context window and a 128K-token max output — the 5th-largest context of the 34 current models we track. Source: https://docs.anthropic.com/en/docs/about-claude/models, verified 2026-08-08.
Does Claude Opus 5 support vision or audio input?
Yes — Claude Opus 5 accepts vision input in addition to text.
Does Claude Opus 5 have a reasoning or extended-thinking mode?
Yes — Claude Opus 5 exposes a dedicated reasoning mode for multi-step problems.
When was Claude Opus 5 released, and what is its knowledge cutoff?
Claude Opus 5 was released 2026-08 with a knowledge cutoff of 2026-05.
How much does Claude Opus 5 cost, and who provides it?
Claude Opus 5 is served by Anthropic at $30.00/M blended tokens (3:1 input:output) — the 34th-cheapest of 34 current models. Full pricing breakdown: /llm-api-pricing/claude-opus-5.