Claude Opus 4.8
Complex, multi-step tasks where Fable 5’s premium isn’t justified.
Claude Opus 4.8 supersedes Claude Opus 4.7, Claude Opus 4.6, Claude Opus 4.5, Claude Opus 4.1, Claude Opus 4.
What are Claude Opus 4.8's specs and price?
Claude Opus 4.8, built by Anthropic, ships a 500K-token context window and a 64K-token max output, released 2026-04. It supports text and vision input with a dedicated reasoning mode and costs $10.00 per million blended tokens, the 30th-cheapest of 32 models we track.
Specs
| Context window | 500K tokens |
| Max output | 64K tokens |
| Modalities | text, vision |
| Extended thinking | Yes |
| Released | 2026-04 |
| Knowledge cutoff | 2026-01 |
| Provider | Anthropic |
Verified 2026-08-08 — source.
Where it ranks
Strengths
- Elite coding and multi-step reasoning
- Strong instruction following on ambiguous prompts
- Extended-thinking mode
More about Claude Opus 4.8
FAQ
What is Claude Opus 4.8's context window?
Claude Opus 4.8 has a 500K-token context window and a 64K-token max output — the 9th-largest context of the 32 current models we track. Source: https://docs.anthropic.com/en/docs/about-claude/models, verified 2026-08-08.
Does Claude Opus 4.8 support vision or audio input?
Yes — Claude Opus 4.8 accepts vision input in addition to text.
Does Claude Opus 4.8 have a reasoning or extended-thinking mode?
Yes — Claude Opus 4.8 exposes a dedicated reasoning mode for multi-step problems.
When was Claude Opus 4.8 released, and what is its knowledge cutoff?
Claude Opus 4.8 was released 2026-04 with a knowledge cutoff of 2026-01.
How much does Claude Opus 4.8 cost, and who provides it?
Claude Opus 4.8 is served by Anthropic at $10.00/M blended tokens (3:1 input:output) — the 30th-cheapest of 32 current models. Full pricing breakdown: /llm-api-pricing/claude-opus-4-8.