Claims and evidence
- Successor of Claude Opus 4.6 Primary source[1]migration paragraph
- Change · Modality Accepts higher-resolution images, up to 2,576 pixels on the long edge instead of 1,568.Compared with Claude Opus 4.6 Primary source[1] [4]April 16, 2026
- Change · Other Uses an updated tokenizer; Anthropic says the same input can map to roughly 1.0 to 1.35 times as many tokens.Compared with Claude Opus 4.6 Primary source[1]
- Change · Safety Ships with safeguards that automatically detect and block prohibited or high-risk cybersecurity requests.Compared with Claude Opus 4.6 Primary source[1]
- Change · Other Non-default values for temperature, top_p or top_k are no longer accepted and return an error.Compared with Claude Opus 4.6 Primary source[3]API parameter deprecations [4]May 28, 2026
- Input text, image Primary source[2]Capabilities: Input and output
- Output text Primary source[2]Capabilities: Input and output
- Context window 1M tokens Primary source[2]Capabilities: Context window
- Parameters Not disclosedNot disclosed by Anthropic. No claim madeNo source
- Access API, consumer app, cloud partner Primary source[1]availability paragraph
Lineage
Predecessors
- Claude Opus 4.6 · 5 February 2026
Successors
- Claude Opus 4.8 · 28 May 2026
Based on
Not derived from another model.
Variants and derived
None recorded.
Siblings
None recorded.
All ancestors
- Claude · 14 March 2023
- Claude 2 · 11 July 2023
- Claude 2.1 · 21 November 2023
- Claude 3 Opus · 4 March 2024
- Claude Opus 4 · 22 May 2025
- Claude Opus 4.1 · 5 August 2025
- Claude Opus 4.5 · 24 November 2025
- Claude Opus 4.6 · 5 February 2026
All descendants
- Claude Opus 4.8 · 28 May 2026
- Claude Opus 5 · 24 July 2026
- Claude Opus 5.5 · 22 September 2026
Variants
No variants recorded in this record.
Related AI Radar coverage
- Project Fetch: Phase twoAnthropic · Research ·