Claude Sonnet 5 (Adaptive Reasoning, Max Effort)

By Anthropic · released 2026-06-30 (5 weeks) · snapshot 2026-08-07

Off the frontierNot on frontier at launch dayproprietary
Intelligence index
55.30
Cost to run the AA index
$4011
Price per 1M tokens (in / out)
$2.00 / $10.0
End-to-end time
204.6s
Better than…

Is Claude Sonnet 5 (Adaptive Reasoning, Max Effort) on the Pareto frontier, and what beats it?

Off the frontier

No. Claude Opus 5 (Adaptive Reasoning, Max Effort) is at least as smart for the same money or less, and nothing on the frontier costs more.

Claude Sonnet 5 (max) vs Claude Opus 5 (Adaptive Reasoning, Max Effort)
#ModelCreatorIntelligenceTotal costE2E totalOpenReleasedFrontier
1Claude Sonnet 5 (Adaptive Reasoning, Max Effort)Anthropic55.30$4011204.6s2026-06-30
2Claude Opus 5 (Adaptive Reasoning, Max Effort)Anthropic63.10$383666.0s2026-07-24Frontier

Open in the picker Daily check URL: 200 on the frontier, 409 once beaten

At a glance

Claude Sonnet 5 (Adaptive Reasoning, Max Effort) today

Time to first answer197.1s
Output speed67 tok/s
Input modalitiesNot reported
0204060$10$20$50$100$200$500$1k$2k$5kCost to run the Artificial Analysis Intelligence Index (USD, log scale)Intelligence IndexClaude 4.5 Haiku (Reasoning) (Anthropic): intelligence 29.90, $471Claude 4.5 Sonnet (Reasoning) (Anthropic): intelligence 37.40, $1037Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) (Anthropic): intelligence 62.10, $5455Claude Opus 4.7 (Adaptive Reasoning, Max Effort) (Anthropic): intelligence 55.00, $3743Claude Opus 4.8 (Adaptive Reasoning, Max Effort) (Anthropic): intelligence 57.30, $3752Claude Opus 5 (Adaptive Reasoning, Low Effort) (Anthropic): intelligence 52.50, $555Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) (Anthropic): intelligence 48.40, $3355DeepSeek R1 (Jan '25) (DeepSeek): intelligence 18.60, $403DeepSeek V3 (Dec '24) (DeepSeek): intelligence 14.20, $20.0DeepSeek V3 0324 (DeepSeek): intelligence 15.20, $35.2DeepSeek V4 Flash (Reasoning, High Effort) (DeepSeek): intelligence 39.00, $58.5DeepSeek V4 Flash (Reasoning, Max Effort) (DeepSeek): intelligence 42.10, $104DeepSeek V4 Pro (Reasoning, High Effort) (DeepSeek): intelligence 43.70, $109DeepSeek V4 Pro (Reasoning, Max Effort) (DeepSeek): intelligence 45.30, $176Gemini 2.5 Pro (Google): intelligence 25.90, $611Gemini 3.1 Flash-Lite (Google): intelligence 25.60, $93.8Gemini 3.1 Pro Preview (Google): intelligence 47.70, $812Gemini 3.5 Flash (high) (Google): intelligence 52.00, $1042Gemini 3.5 Flash-Lite (Google): intelligence 37.40, $153Gemini 3.6 Flash (high) (Google): intelligence 51.60, $727Gemma 4 26B A4B (Reasoning) (Google): intelligence 26.10, $59.5Gemma 4 31B (Non-reasoning) (Google): intelligence 22.30, $32.8GLM-4.6 (Reasoning) (Z AI): intelligence 29.30, $314GLM-4.7 (Reasoning) (Z AI): intelligence 34.50, $607GLM-5.1 (Reasoning) (Z AI): intelligence 41.00, $676GLM-5.2 (max) (Z AI): intelligence 52.60, $904GPT-4.1 mini (OpenAI): intelligence 14.80, $64.2GPT-4.1 nano (OpenAI): intelligence 9.60, $36.7GPT-5 (high) (OpenAI): intelligence 35.30, $789GPT-5 mini (high) (OpenAI): intelligence 25.80, $130GPT-5.1 (high) (OpenAI): intelligence 37.50, $782GPT-5.4 (xhigh) (OpenAI): intelligence 53.10, $2183GPT-5.4 mini (xhigh) (OpenAI): intelligence 40.90, $1096GPT-5.4 nano (xhigh) (OpenAI): intelligence 39.70, $277GPT-5.5 (high) (OpenAI): intelligence 54.70, $1721GPT-5.5 (low) (OpenAI): intelligence 44.50, $374GPT-5.5 (medium) (OpenAI): intelligence 51.40, $939GPT-5.5 (Non-reasoning) (OpenAI): intelligence 35.80, $212GPT-5.5 (xhigh) (OpenAI): intelligence 56.30, $2778GPT-5.5 Instant (June 2026) (OpenAI): intelligence 29.20, $423GPT-5.6 Luna (xhigh) (OpenAI): intelligence 50.10, $95.1GPT-5.6 Sol (low) (OpenAI): intelligence 50.70, $344GPT-5.6 Sol (max) (OpenAI): intelligence 60.90, $2823GPT-5.6 Sol (medium) (OpenAI): intelligence 55.60, $580GPT-5.6 Sol (Non-reasoning) (OpenAI): intelligence 41.90, $240GPT-5.6 Terra (high) (OpenAI): intelligence 50.10, $395GPT-5.6 Terra (low) (OpenAI): intelligence 41.30, $130GPT-5.6 Terra (max) (OpenAI): intelligence 56.60, $1390GPT-5.6 Terra (medium) (OpenAI): intelligence 46.80, $192GPT-5.6 Terra (Non-reasoning) (OpenAI): intelligence 34.60, $98.5GPT-5.6 Terra (xhigh) (OpenAI): intelligence 52.80, $590gpt-oss-120b (high) (OpenAI): intelligence 24.10, $94.6gpt-oss-120b (low) (OpenAI): intelligence 14.90, $24.1gpt-oss-20b (high) (OpenAI): intelligence 15.20, $32.7Grok 4.3 (high) (SpaceXAI): intelligence 37.90, $288Grok 4.3 (Non-reasoning) (SpaceXAI): intelligence 25.00, $201Grok Build 0.1 0616 (SpaceXAI): intelligence 40.70, $377Hy3 (Tencent): intelligence 42.20, $93.6HyperNova 60B 2605 (Multiverse Computing): intelligence 18.30, $37.5Inkling Small (Thinking Machines): intelligence 41.20, $193Kimi K2.5 (Reasoning) (Kimi): intelligence 36.00, $304Kimi K2.6 (Kimi): intelligence 45.10, $841Kimi K2.7 Code (Kimi): intelligence 43.00, $545Kimi K3 (low) (Kimi): intelligence 48.30, $283Kimi K3 (max) (Kimi): intelligence 59.70, $2425Ling-3.0-flash (InclusionAI): intelligence 37.80, $72.7Llama 4 Maverick (Meta): intelligence 14.50, $35.9Llama 4 Scout (Meta): intelligence 10.30, $11.6Magistral Medium 1.2 (Mistral): intelligence 18.00, $920Magistral Small 1.2 (Mistral): intelligence 11.50, $301Mercury 2 (Inception): intelligence 21.90, $97.5MiMo-V2.5 (Xiaomi): intelligence 38.00, $25.2MiMo-V2.5-Pro (Xiaomi): intelligence 42.90, $98.9MiniMax-M3 (MiniMax): intelligence 45.40, $205Ministral 3 14B (Mistral): intelligence 11.20, $119Ministral 3 3B (Mistral): intelligence 7.10, $91.6Ministral 3 8B (Mistral): intelligence 9.00, $114Mistral Large 3 (Mistral): intelligence 15.90, $71.1Mistral Medium 3.1 (Mistral): intelligence 14.70, $134Mistral Medium 3.5 (Mistral): intelligence 30.40, $883Mistral Small 3.1 (Mistral): intelligence 14.90, $29.8Mistral Small 3.2 (Mistral): intelligence 10.70, $129Mistral Small 4 (Reasoning) (Mistral): intelligence 19.70, $87.7Nemotron 3 Ultra 550B A55B (Reasoning) (NVIDIA): intelligence 38.30, $534NVIDIA Nemotron 3 Nano 30B A3B (Reasoning) (NVIDIA): intelligence 14.50, $39.4NVIDIA Nemotron 3 Super 120B A12B (Reasoning) (NVIDIA): intelligence 25.70, $254Qwen3 235B A22B 2507 (Reasoning) (Alibaba): intelligence 19.90, $610Qwen3 30B A3B 2507 (Reasoning) (Alibaba): intelligence 14.60, $152Qwen3 Coder Next (Alibaba): intelligence 21.30, $250Qwen3 Next 80B A3B (Reasoning) (Alibaba): intelligence 16.90, $400Qwen3.5 122B A10B (Non-reasoning) (Alibaba): intelligence 28.20, $221Qwen3.5 122B A10B (Reasoning) (Alibaba): intelligence 32.80, $444Qwen3.5 35B A3B (Non-reasoning) (Alibaba): intelligence 24.30, $228Qwen3.5 397B A17B (Reasoning) (Alibaba): intelligence 34.30, $527Qwen3.5 9B (Reasoning) (Alibaba): intelligence 21.80, $240Qwen3.6 27B (Non-reasoning) (Alibaba): intelligence 31.30, $359Qwen3.6 27B (Reasoning) (Alibaba): intelligence 37.70, $667Qwen3.6 35B A3B (Reasoning) (Alibaba): intelligence 32.10, $334Qwen3.6 Plus (Alibaba): intelligence 40.50, $526Qwen3.7 Max (Alibaba): intelligence 46.70, $1064Qwen3.7 Plus (Alibaba): intelligence 39.40, $322Qwen3.8 Max (Alibaba): intelligence 58.10, $1741Solar Pro 3 (Upstage): intelligence 14.50, $158Step 3.7 Flash (StepFun): intelligence 30.90, $320GPT-5.6 Luna (Non-reasoning) (OpenAI): intelligence 26.80, $10.2GPT-5.6 Luna (low) (OpenAI): intelligence 33.90, $13.7GPT-5.6 Luna (medium) (OpenAI): intelligence 38.90, $21.1GPT-5.6 Luna (high) (OpenAI): intelligence 47.00, $55.0DeepSeek V4 Flash 0731 (Reasoning, Max Effort) (DeepSeek): intelligence 51.80, $72.0GPT-5.6 Luna (max) (OpenAI): intelligence 52.30, $172Muse Spark 1.1 (xhigh) (Meta): intelligence 53.20, $547Grok 4.5 (high) (SpaceXAI): intelligence 55.80, $579Muse Spark 1.2 (xhigh) (Meta): intelligence 56.80, $639GPT-5.6 Sol (high) (OpenAI): intelligence 57.30, $955Claude Opus 5 (Adaptive Reasoning, Medium Effort) (Anthropic): intelligence 58.60, $1116GPT-5.6 Sol (xhigh) (OpenAI): intelligence 59.00, $1525Claude Opus 5 (Adaptive Reasoning, High Effort) (Anthropic): intelligence 61.50, $1974Claude Opus 5 (Adaptive Reasoning, Xhigh Effort) (Anthropic): intelligence 62.50, $2909Claude Opus 5 (Adaptive Reasoning, Max Effort) (Anthropic): intelligence 63.10, $3836Claude Sonnet 5 (Non-reasoning, High Effort) (Anthropic): intelligence 42.60, $416Claude Sonnet 5 (Adaptive Reasoning, Max Effort) (Anthropic): intelligence 55.30, $4011Claude Sonnet 5 (max)(non-reasoning, high)GPT-5.6 Luna (Non-reasoning)Claude Opus 5 (max)

2 of 6 effort levels plotted. The remaining levels lack intelligence or benchmark cost data.

Claude Sonnet 5 (Adaptive Reasoning, Max Effort)Same release, other effort levelsToday's Pareto frontierEvery other model
Up and left is better. Dotted line: today's Pareto frontier. Hover a point for its numbers, click it for its page.

Intelligence: Artificial Analysis Intelligence Index. Cost: total cost to run that benchmark, so reasoning tokens count. API id: claude-sonnet-5.

Matchup

Compare head to head

Suggested: what beats it, its effort levels, and frontier models near its price.

Compare Claude Sonnet 5 (Adaptive Reasoning, Max Effort) with measured models

Release

What the Claude Sonnet 5 release did to the frontier on 2026-06-30

None of its 6 effort levels reached the frontier at launch.

Closest miss: Claude Sonnet 5 (non-reasoning, high), 0.3 points below MiMo-V2.5-Pro at 4.2× the cost.

Release page: launch-day frontier and every effort level

Deciding

Should you use Claude Sonnet 5 (Adaptive Reasoning, Max Effort)?

Should you use Claude Sonnet 5 (Adaptive Reasoning, Max Effort)?

Only when it fits your setup: Claude Opus 5 (Adaptive Reasoning, Max Effort) is at least as smart for the same money or less, so Claude Sonnet 5 (Adaptive Reasoning, Max Effort) is off the value frontier today.

What is better and cheaper than Claude Sonnet 5 (Adaptive Reasoning, Max Effort)?

Claude Opus 5 (Adaptive Reasoning, Max Effort) — at least as smart for the same money or less.

How much does Claude Sonnet 5 (Adaptive Reasoning, Max Effort) cost?

$2.00/$10 in/out per 1M tokens, and $4011 to run the full Artificial Analysis Intelligence Index, the honest all-in number for reasoning models.

Is Claude Sonnet 5 (Adaptive Reasoning, Max Effort) on the Pareto frontier?

No: Claude Opus 5 (Adaptive Reasoning, Max Effort) beats it on intelligence, cost, or both.

Frontier membership by axis pair

Other axis pairs where Claude Sonnet 5 (Adaptive Reasoning, Max Effort) is Pareto-optimal.

Y axisX axisOn the frontier
AA intelligence indexAA total cost to run (USD)
AA intelligence indexEnd-to-end total seconds
AA intelligence indexOutput speed tokens/sec
Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/models/claude-sonnet-5 · Markdown: /api/v1/models/claude-sonnet-5?format=md · llms.txt · agent skill