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Claude Opus 4.5

AnthropicASL-3

Claude Opus 4.5 was released November 24, 2025. First model to break 80% on SWE-bench Verified (80.9%). Featured a 67% price reduction from Opus 4 (\$5/\$25 vs \$15/\$75 per MTok). Scored 44% on Terminal-Bench Hard and 70 on Artificial Analysis Intelligence Index.

Developer
Anthropic
Released
2025-11-24
Context Window
200K tokens
Safety Level
ASL-3

Pricing

TypePrice per MTok
Input$5.00
Output$25.00

Benchmarks4

General

1 benchmark

Reasoning

1 benchmark
87%#2/34
96th percentile

Coding

1 benchmark
97th percentile

Agentic

1 benchmark
50th percentile
Percentile among tested models:Top 25%50-75%25-50%Bottom 25%

Claude Family14

ModelTierReleasedInput $/MTok
Claude Sonnet 4.6sonnet2026-02-17$3.00
Claude Opus 4.6opus2026-02-05$5.00
Claude Haiku 4.5haiku2025-10-15$1.00
Claude Sonnet 4.5sonnet2025-09-29$3.00
Claude Opus 4.1opus2025-08-05$15.00
Claude Sonnet 4sonnet2025-05-22$3.00
Claude Opus 4opus2025-05-22$15.00
Claude 3.7 Sonnetsonnet2025-02-24$3.00
Claude 3.5 Haikuhaiku2024-11-04$0.80
Claude 3.5 Sonnetsonnet2024-06-20$3.00
Claude 3 Opusopus2024-03-04$15.00
Claude 3 Sonnetsonnet2024-03-04$3.00
Claude 3 Haikuhaiku2024-03-04$0.25
Claude 2mid2023-07-11

Details

Model FamilyClaude
Tieropus
Generation4.5
Release Date2025-11-24
Context Window200K tokens
Open WeightNo
Safety LevelASL-3
Modalitytext, image

Capabilities3

tool-useextended-thinkingagentic-coding

Sources1

Tags

claudeclaude-4agentic-coding