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Models / Anthropic

Claude Opus 4.5

Claude Opus · Released 2025-11-24

Anthropic's November 2025 flagship. Best at coding and agents at its release. $5/$25 per 1M tokens, 200K context. Superseded by Opus 4.6/4.7.

Previous-gen Opus for coding and agentic tasks. Still available but Opus 4.7 is the current default.

Composite51
Context200K
Input / 1M$5.0
Output / 1M$25
Knowledge cutoff2025-10-01
Output speed46 t/s
Statussolid

Family profile

Best published score in each covered benchmark family.

64/100 avg
Reasoning
81
Agentic
41
Long context
71

3 tested benchmark families

Benchmark placements

Where Claude Opus 4.5 places on each public benchmark source that publishes a row. Rank counts every model with a latest row in the same test — not a universal quality score.

BenchmarkFamilyRankScoreSourceDate
Terminal-BenchAgentic#96/ 16741Artificial Analysis2026-09-28
AA-LCRLong context#118/ 18471Artificial Analysis2026-09-28
AA output speedPerformance#125/ 195Artificial Analysis2026-10-12
GPQA DiamondReasoning#134/ 18481Artificial Analysis2026-09-28
Humanity's Last ExamReasoning#152/ 18613Artificial Analysis2026-09-28
Family context

The three highest-scoring models with pages in each capability family. Where Claude Opus 4.5 shows up, it's highlighted.

ReasoningClaude Opus 4.5 · 81
  1. 1
    GPT-6 Astra
    96
  2. 2
    Claude Mythos Preview
    95
  3. 3
    Gemini 3.7 Flash
    95
Long contextClaude Opus 4.5 · 71
  1. 1
    Kimi K3
    89
  2. 2
    MiMo-V2.6-Pro
    86
  3. 3
    Claude Fable 5.1
    85
Newest receipts

Benchmark rows added to the public ledger for Claude Opus 4.5 in the last 120 days. Older rows live in the full table below.

5 recent
BenchmarkFamilyScoreSourceDays ago
AA output speedPerformance46 t/sArtificial Analysis10
AA-LCRLong context70.67%Artificial Analysis24
GPQA DiamondReasoning81%Artificial Analysis24
Humanity's Last ExamReasoning13.2%Artificial Analysis24
Terminal-BenchAgentic40.91%Artificial Analysis24
Family coverage

A high composite that hides a weak family is a trap. These bars surface the families where this model hasn't been publicly tested, and where it leads.

Reasoning81
Agentic41
Long context71
Price vs. performance
0255075100$0.10$0.30$1$3$10$30input USD / 1M tokens · log scale →← intelligence

Hover any dot for name, score, and input price. Keyboard: tab through the top twelve, or use the ranking below.

AnthropicOpenAIGoogleAlibabaMetaZhipuxAIDeepSeekMiniMaxXiaomiMoonshotOtherMeituanMistralNVIDIACohere

Full benchmark ledger

Every catalog benchmark for Claude Opus 4.5. Scores link to the original source; gaps mean no public row exists yet.

5 sourced rows

5 of 13 catalog benchmarks have a sourced row for Claude Opus 4.5.

Reasoning

Agentic

Long context

Performance

Changelog
  1. Released Claude Opus 4.5 — best coding and agent model at launch, $5/$25.
Sources

Questions this model page answers

Every answer below is assembled from the dated fields on this page. Nothing is written separately for search.

What is Claude Opus 4.5?

Claude Opus 4.5 is a Anthropic model: Anthropic's November 2025 flagship. Best at coding and agents at its release. $5/$25 per 1M tokens, 200K context. Superseded by Opus 4.6/4.7.

What is Claude Opus 4.5 for?

Previous-gen Opus for coding and agentic tasks. Still available but Opus 4.7 is the current default.

What does Claude Opus 4.5 cost?

Claude Opus 4.5 lists $5.0 input and $25 output per 1M tokens. Pricing last checked 2026-06-02.

How large is the Claude Opus 4.5 context window?

Claude Opus 4.5 publishes a 200K token context window.

What is the VerdictPal status of Claude Opus 4.5?

Claude Opus 4.5 carries Solid status on the model atlas.

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