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Models / Anthropic

Claude Sonnet 5

Claude Sonnet · Released 2026-06-30

Anthropic's June 2026 Sonnet-class release. Artificial Analysis Intelligence Index 53.4 at max adaptive effort — between GPT-5.5 and Claude Opus 4.7 on the public AA board. API list price $2 / $10 per 1M tokens.

Default Anthropic mid-tier once Sonnet 5 is generally available in your stack. Use max-effort AA rows for intelligence comparisons; lower-effort variants score differently on the same suite.

#4 of 51 on AA Index · current snapshot
53 AA Index · 9 benchmark rows · 1 sourcesPosition is benchmark-specific — not a cross-family or cross-source ranking.
Composite60
Context1M
Input / 1M$2.0
Output / 1M$10
Knowledge cutoffopen
Output speed88 t/s
TTFT (default API)88.49s
Statussolid
Claude
ReasoningCodingAgenticLong context
Reasoning
91
Coding
54
Agentic
81
Long context
71

74average across 4 tested families

Editor's note
Card scaffolded from the 2026-07-09 AA snapshot (slug claude-sonnet-5, max adaptive effort). Desk still needs full editorial depth; do not treat the summary as a hands-on verdict.
Benchmark placements

Where Claude Sonnet 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
AA time to first tokenPerformance#4/ 69Artificial Analysis2026-07-21
Artificial Analysis Intelligence IndexReasoning#9/ 6753Artificial Analysis2026-07-21
Terminal-BenchAgentic#10/ 6981Artificial Analysis2026-07-21
SciCodeCoding#13/ 6554Artificial Analysis2026-07-21
GPQA DiamondReasoning#16/ 6991Artificial Analysis2026-07-21
AA-LCRLong context#19/ 6471Artificial Analysis2026-07-21
Humanity's Last ExamReasoning#19/ 6540Artificial Analysis2026-07-21
AA output speedPerformance#29/ 69Artificial Analysis2026-07-21
τ³-Bench BankingAgentic#29/ 6428Artificial Analysis2026-07-21
Family context

The three highest-scoring carded models in each capability family. Where Claude Sonnet 5 shows up, it's highlighted.

ReasoningClaude Sonnet 5 · 91
  1. 1
    Claude Mythos Preview
    95
  2. 2
    GPT-5.6 Sol
    94
  3. 3
    Kimi K3
    94
CodingClaude Sonnet 5 · 54
  1. 1
    GPT 5.5
    96
  2. 2
    Claude Opus 4.8
    96
  3. 3
    Claude Opus 4.6
    96
AgenticClaude Sonnet 5 · 81
  1. 1
    GPT 5.5
    100
  2. 2
    Claude Opus 4.8
    100
  3. 3
    Claude Fable 5
    100
Long contextClaude Sonnet 5 · 71
  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 Sonnet 5 in the last 120 days. Older rows live in the full table below.

9 recent
BenchmarkFamilyScoreSourceDays ago
AA-LCRLong context70.67%Artificial Analysis2
AA output speedPerformance88 t/sArtificial Analysis2
AA time to first tokenPerformance88.49sArtificial Analysis2
Artificial Analysis Intelligence IndexReasoning53.4%Artificial Analysis2
GPQA DiamondReasoning91.1%Artificial Analysis2
Humanity's Last ExamReasoning39.6%Artificial Analysis2
SciCodeCoding53.6%Artificial Analysis2
τ³-Bench BankingAgentic28.25%Artificial Analysis2
Terminal-BenchAgentic80.52%Artificial Analysis2
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.

Reasoning91
Coding54
Agentic81
Long context71
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 Sonnet 5. Scores link to the original source; gaps mean no public row exists yet.

9 sourced rows

9 of 32 catalog benchmarks have a sourced row for Claude Sonnet 5.

Reasoning

Coding

Agentic

Long context

Performance

Changelog
  1. Claude Sonnet 5 listed on Artificial Analysis (max-effort index 53.4).
Sources