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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 Superseded by Opus 4.6/4.7.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.

#30 of 51 on AA Index · current snapshot
35 AA Index · 14 benchmark rows · 2 sourcesPosition is benchmark-specific — not a cross-family or cross-source ranking.
Composite58
Context200K
Input / 1M$5.0
Output / 1M$25
Knowledge cutoff2025-10-01
Output speed68 t/s
TTFT (default API)1.32s
Statussolid
KnowledgeReasoningMathCodingAgenticLong context
Knowledge
89
Reasoning
81
Math
63
Coding
81
Agentic
86
Long context
65

78average across 6 tested 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
MMLU-ProKnowledge#2/ 2189Artificial Analysis2026-07-21
SWE-bench VerifiedCoding#5/ 2381SWE-bench SEAL leaderboard2026-05-30
τ³-Bench BankingAgentic#6/ 6486Artificial Analysis2026-07-21
LiveCodeBenchCoding#7/ 1374Artificial Analysis2026-07-21
AIMEMath#13/ 1963Artificial Analysis2026-07-21
SciCodeCoding#35/ 6547Artificial Analysis2026-07-21
AA-LCRLong context#37/ 6465Artificial Analysis2026-07-21
AA time to first tokenPerformance#37/ 69Artificial Analysis2026-07-21
AA output speedPerformance#41/ 69Artificial Analysis2026-07-21
Artificial Analysis Intelligence IndexReasoning#45/ 6735Artificial Analysis2026-07-21
GPQA DiamondReasoning#49/ 6981Artificial Analysis2026-07-21
Terminal-BenchAgentic#51/ 6941Artificial Analysis2026-07-21
IFBenchReasoning#52/ 5743Artificial Analysis2026-07-21
Humanity's Last ExamReasoning#55/ 6513Artificial Analysis2026-07-21
Family context

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

KnowledgeClaude Opus 4.5 · 89
  1. 1
    GPT 5.5
    91
  2. 2
    Claude Opus 4.8
    91
  3. 3
    Claude Sonnet 4.6
    91
ReasoningClaude Opus 4.5 · 81
  1. 1
    Claude Mythos Preview
    95
  2. 2
    GPT-5.6 Sol
    94
  3. 3
    Kimi K3
    94
MathClaude Opus 4.5 · 63
  1. 1
    OpenAI o3
    99
  2. 2
    OpenAI o1
    97
  3. 3
    Gemini 3 Pro
    96
CodingClaude Opus 4.5 · 81
  1. 1
    GPT 5.5
    96
  2. 2
    Claude Opus 4.8
    96
  3. 3
    Claude Opus 4.6
    96
AgenticClaude Opus 4.5 · 86
  1. 1
    GPT 5.5
    100
  2. 2
    Claude Opus 4.8
    100
  3. 3
    Claude Fable 5
    100
Long contextClaude Opus 4.5 · 65
  1. 1
    Kimi K3
    75
  2. 2
    GPT-5.1
    75
  3. 3
    GPT-5.6 Sol
    74
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.

14 recent
BenchmarkFamilyScoreSourceDays ago
AA-LCRLong context65.33%Artificial Analysis2
AA output speedPerformance68 t/sArtificial Analysis2
AA time to first tokenPerformance1.32sArtificial Analysis2
AIMEMath62.67%Artificial Analysis2
Artificial Analysis Intelligence IndexReasoning34.7%Artificial Analysis2
GPQA DiamondReasoning81%Artificial Analysis2
Humanity's Last ExamReasoning12.9%Artificial Analysis2
IFBenchReasoning42.99%Artificial Analysis2
LiveCodeBenchCoding73.8%Artificial Analysis2
MMLU-ProKnowledge88.9%Artificial Analysis2
SciCodeCoding47%Artificial Analysis2
τ³-Bench BankingAgentic86.26%Artificial Analysis2
Terminal-BenchAgentic40.91%Artificial Analysis2
SWE-bench VerifiedCoding80.9%SWE-bench SEAL leaderboard54
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.

Knowledge89
Reasoning81
Math63
Coding81
Agentic86
Long context65
Price vs. performance
0255075100$0.10$0.30$1$3$10$30input USD / 1M tokens · log scale →← intelligence

Hover or tab any dot for name, score, and input price.

AnthropicOpenAIMistralAlibabaDeepSeekGoogleMoonshotMiniMaxxAIMetaZhipuXiaomiMeituanCohere

Full benchmark ledger

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

14 sourced rows

14 of 32 catalog benchmarks have a sourced row for Claude Opus 4.5.

Knowledge

Reasoning

Math

Coding

Agentic

Long context

Performance

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