AnthropicOpen weightsFebruary 5, 2026

Claude Opus 4.6 (high)

Intelligence, Performance & Price Analysis

Source:Artificial Analysis scrapeType:Open weights
Intelligence
38

score

Claude Opus 4.6 (Non-reasoning, High Effort) scores 38 (estimated) on the Artificial Analysis …

vs class avg: 17

Speed
42.6

output tokens/sec

Claude Opus 4.6 (Non-reasoning, High Effort) generates output at 42. …

Latency
2.62s

TTFT

Claude Opus 4.6 (Non-reasoning, High Effort) has a time to first token (TTFT) of 2. …

Input Price
$5.00

/ 1M tokens

Claude Opus 4.6 (Non-reasoning, High Effort) costs $5.00 per 1M input tokens (at the higher end, …

Output Price
$25.00

/ 1M tokens

Claude Opus 4.6 (Non-reasoning, High Effort) costs $5.00 per 1M input tokens (at the higher end, …

Decision Overview

Ethen's intelligence-driven routing assessment for this model

Overall verdict

Frontier research / complex reasoning

Reserve this model for the hardest requests; simpler or repetitive work should stay on cheaper routes.

Best for

  • Complex reasoning
  • Research synthesis
  • Hard coding tasks
  • Multi-step agentic workflows
  • High-value tasks where quality outweighs cost

Weak or unsuitable

  • High-volume chat
  • Simple classification
  • Cost-sensitive pipelines
  • Routine high-volume generation
  • Simple extraction or labeling

Routing recommendation

1

Lower-cost models for repetitive or high-volume work

2

Cache-backed reuse for repeated prompts

Cost pressure

Premium pricing — $5.00 / M input, $25.00 / M output. Use cheaper routes for repetitive or low-risk work.

Model-fit matrix

Use this model where capability pays for itself; route away where volume, latency, or budget dominate.

Use caseFitReasonRouting note
Complex reasoning & agentic workflowsExcellentIntelligence score 38 places this model among top performers. Suitable for multi-step analysis and agentic loops.Route complex tasks here; reserve simpler queries for cheaper models.
High-volume chat & customer-facingModerateOutput speed may be a bottleneck for real-time chat at scale.Consider a faster model for latency-sensitive chat.
Latency-sensitive applicationsModerateTTFT 2.62s — latency may be noticeable in interactive use.Consider routing latency-critical paths to faster models.
Cost-sensitive pipelinesModerateOutput pricing at $25.00 is premium. Route high-volume simple tasks to cheaper alternatives.Use only for high-value tasks; route simple queries to budget models.

Cost pressure

High

Pricing is premium — input $5.00, output $25.00. This model is expensive for high-volume or output-heavy workloads.

Cheaper substitutes

  • Lower-cost models for repetitive or high-volume work
  • Cache-backed reuse for repeated prompts

Route away when

  • Output-heavy tasks
  • High-frequency chat at scale
  • Simple queries that cheaper models handle well

Highlights

Key benchmark results at a glance.

Intelligence

Intelligence position

Open section

Artificial Analysis Intelligence Index · Higher is better · Evaluation results measured independently by Artificial Analysis

Claude Opus 4.6 (Non-reasoning, High Effort) scores 38 (estimated) on the Artificial Analysis Intelligence Index, placing it well above average among other non-reasoning models in a similar price tier (median: 17).

0204060Claude Fable 5 (with fallback): 6060AClaude Fable 5 (with fal…GPT-5.5 (xhigh): 5555AIGPT-5.5 (xhigh)GLM-5.2 (max): 5151?GLM-5.2 (max)Gemini 3.5 Flash: 5050GGemini 3.5 FlashMiniMax-M3: 4444?MiniMax-M3DeepSeek V4 Pro (max): 4444DDeepSeek V4 Pro (max)Kimi K2.6: 4444KKimi K2.6Muse Spark: 4343?Muse SparkClaude Opus 4.6 (high): 3838AClaude Opus 4.6 (high)Nemotron 3 Ultra: 3838NNemotron 3 UltraGrok 4.3 (high): 3838xGrok 4.3 (high)gpt-oss-120b (high): 2424AIgpt-oss-120b (high)

Speed

Speed position

Open section

Output tokens per second · Higher is better · Evaluation results measured independently by Artificial Analysis

Claude Opus 4.6 (Non-reasoning, High Effort) generates output at 42.6 tokens per second (based on Anthropic's API), which is at the lower end compared to other non-reasoning models in a similar price tier (median: 64.2 t/s).

088175263350gpt-oss-120b (high): 316316AIgpt-oss-120b (high)Nemotron 3 Ultra: 248248NNemotron 3 UltraGLM-5.2 (max): 216216?GLM-5.2 (max)Gemini 3.5 Flash: 192192GGemini 3.5 FlashGrok 4.3 (high): 164164xGrok 4.3 (high)Nova 2.0 Pro Preview: 141141?Nova 2.0 Pro PreviewGrok 4.3 (Non-reasoning): 133133xGrok 4.3 (Non-reasoning)MiniMax-M3: 9595?MiniMax-M3GPT-5.5 (xhigh): 8888AIGPT-5.5 (xhigh)Kimi K2.6: 7676KKimi K2.6GPT-5.5 (Non-reasoning): 7575AIGPT-5.5 (Non-reasoning)DeepSeek V4 Pro (max): 7272DDeepSeek V4 Pro (max)Claude Opus 4.6 (high): 4343AClaude Opus 4.6 (high)

Context, Cost & Pricing

Price/value position

Open section

Weighted average cost (USD) per Intelligence Index task · Lower is better · Evaluation results measured independently by Artificial Analysis

Pricing is premium — input $5.00, output $25.00. This model is expensive for high-volume or output-heavy workloads.

$0.00$1.00$2.00$3.00$4.00$5.00DeepSeek V4 Pro (max): $0.04$0.04DDeepSeek V4 Pro (max)gpt-oss-120b (high): $0.06$0.06AIgpt-oss-120b (high)MiniMax-M3: $0.12$0.12?MiniMax-M3Grok 4.3 (high): $0.14$0.14xGrok 4.3 (high)Nemotron 3 Ultra: $0.24$0.24NNemotron 3 UltraKimi K2.6: $0.35$0.35KKimi K2.6GLM-5.2 (max): $0.37$0.37?GLM-5.2 (max)Gemini 3.5 Flash: $0.59$0.59GGemini 3.5 FlashGPT-5.5 (xhigh): $0.86$0.86AIGPT-5.5 (xhigh)Claude Fable 5 (with fallback): $2.75$2.75AClaude Fable 5 (with fal…

Intelligence & Quality

Benchmark scores and quality indices measuring model capability.

AA-Omniscience Index

AA-Omniscience Index (higher is better) measures knowledge reliability and hallucination. It rewards correct answers, penalizes hallucinations, and has no penalty for refusing to answer. Scores range from -100 to 100, where 0 means as many correct as incorrect answers, and negative scores mean more incorrect than correct. · Evaluation results measured independently by Artificial Analysis

Source and methodology are summarized below

Chart source and provenance are listed in Methodology & sources below.

-200204060Claude Fable 5 (with fallback): 4040AClaude Fable 5 (with fal…Gemini 3.5 Flash: 2323GGemini 3.5 FlashGPT-5.5 (xhigh): 2020AIGPT-5.5 (xhigh)Grok 4.3 (high): 1818xGrok 4.3 (high)Kimi K2.6: 6.46.4KKimi K2.6Muse Spark: 4.14.1?Muse SparkGLM-5.2 (max): 44?GLM-5.2 (max)Claude Opus 4.6 (high): 3.53.5AClaude Opus 4.6 (high)MiniMax-M3: 1.41.4?MiniMax-M3Nemotron 3 Ultra: -0.8-0.8NNemotron 3 Ultra

Artificial Analysis Intelligence Index by Open Weights / Proprietary

Artificial Analysis Intelligence Index v4.1 incorporates 9 evaluations: GDPval-AA v2, 𝜏³-Banking, Terminal-Bench v2.1, SciCode, Humanity's Last Exam, GPQA Diamond, CritPt, AA-Omniscience, AA-LCR · Evaluation results measured independently by Artificial Analysis

Source and methodology are summarized below

Chart source and provenance are listed in Methodology & sources below.

0204060Claude Fable 5 (with fallback): 6060AClaude Fable 5 (with fal…GPT-5.5 (xhigh): 5555AIGPT-5.5 (xhigh)GLM-5.2 (max): 5151?GLM-5.2 (max)Gemini 3.5 Flash: 5050GGemini 3.5 FlashMiniMax-M3: 4444?MiniMax-M3DeepSeek V4 Pro (max): 4444DDeepSeek V4 Pro (max)Kimi K2.6: 4444KKimi K2.6Muse Spark: 4343?Muse SparkClaude Sonnet 5 (Non-reasoning): 4242AClaude Sonnet 5 (Non-rea…Claude Opus 4.6 (high): 3838AClaude Opus 4.6 (high)

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index v4.1 incorporates 9 evaluations: GDPval-AA v2, 𝜏³-Banking, Terminal-Bench v2.1, SciCode, Humanity's Last Exam, GPQA Diamond, CritPt, AA-Omniscience, AA-LCR · Evaluation results measured independently by Artificial Analysis

Source and methodology are summarized below

Chart source and provenance are listed in Methodology & sources below.

0204060Claude Fable 5 (with fallback): 6060AClaude Fable 5 (with fal…GPT-5.5 (xhigh): 5555AIGPT-5.5 (xhigh)GLM-5.2 (max): 5151?GLM-5.2 (max)Gemini 3.5 Flash: 5050GGemini 3.5 FlashMiniMax-M3: 4444?MiniMax-M3DeepSeek V4 Pro (max): 4444DDeepSeek V4 Pro (max)Kimi K2.6: 4444KKimi K2.6Muse Spark: 4343?Muse SparkClaude Sonnet 5 (Non-reasoning): 4242AClaude Sonnet 5 (Non-rea…Claude Opus 4.6 (high): 3838AClaude Opus 4.6 (high)

Intelligence

Artificial Analysis Intelligence Index · Higher is better · Evaluation results measured independently by Artificial Analysis

Source and methodology are summarized below

Chart source and provenance are listed in Methodology & sources below.

0204060Claude Fable 5 (with fallback): 6060AClaude Fable 5 (with fal…GPT-5.5 (xhigh): 5555AIGPT-5.5 (xhigh)GLM-5.2 (max): 5151?GLM-5.2 (max)Gemini 3.5 Flash: 5050GGemini 3.5 FlashMiniMax-M3: 4444?MiniMax-M3DeepSeek V4 Pro (max): 4444DDeepSeek V4 Pro (max)Kimi K2.6: 4444KKimi K2.6Muse Spark: 4343?Muse SparkClaude Opus 4.6 (high): 3838AClaude Opus 4.6 (high)Nemotron 3 Ultra: 3838NNemotron 3 Ultra

Speed & Throughput

Output tokens per second and generation throughput.

Output Speed

Output tokens per second · Higher is better · Evaluation results measured independently by Artificial Analysis

Source and methodology are summarized below

Chart source and provenance are listed in Methodology & sources below.

088175263350gpt-oss-120b (high): 316316AIgpt-oss-120b (high)Nemotron 3 Ultra: 248248NNemotron 3 UltraGLM-5.2 (max): 216216?GLM-5.2 (max)Gemini 3.5 Flash: 192192GGemini 3.5 FlashGrok 4.3 (high): 164164xGrok 4.3 (high)Nova 2.0 Pro Preview: 141141?Nova 2.0 Pro PreviewGrok 4.3 (Non-reasoning): 133133xGrok 4.3 (Non-reasoning)MiniMax-M3: 9595?MiniMax-M3GPT-5.5 (xhigh): 8888AIGPT-5.5 (xhigh)Kimi K2.6: 7676KKimi K2.6Claude Opus 4.6 (high): 4343AClaude Opus 4.6 (high)

Speed

Output tokens per second · Higher is better · Evaluation results measured independently by Artificial Analysis

Source and methodology are summarized below

Chart source and provenance are listed in Methodology & sources below.

088175263350gpt-oss-120b (high): 316316AIgpt-oss-120b (high)Nemotron 3 Ultra: 248248NNemotron 3 UltraGLM-5.2 (max): 216216?GLM-5.2 (max)Gemini 3.5 Flash: 192192GGemini 3.5 FlashGrok 4.3 (high): 164164xGrok 4.3 (high)MiniMax-M3: 9595?MiniMax-M3GPT-5.5 (xhigh): 8888AIGPT-5.5 (xhigh)Kimi K2.6: 7676KKimi K2.6DeepSeek V4 Pro (max): 7272DDeepSeek V4 Pro (max)Claude Fable 5 (with fallback): 7171AClaude Fable 5 (with fal…Claude Opus 4.6 (high): 4343AClaude Opus 4.6 (high)

Latency & Response Time

Time to first token and end-to-end response latency.

End-to-End Response Time

Seconds to output 500 tokens, including reasoning model 'thinking' time · Lower is better · Evaluation results measured independently by Artificial Analysis

Source and methodology are summarized below

Chart source and provenance are listed in Methodology & sources below.

0s15s30s45s60sClaude Opus 4.6 (high): 12s12sAClaude Opus 4.6 (high)Qwen3.6 27B: 8.4s8.4sQQwen3.6 27BClaude Fable 5 (with fallback): 7.1s7.1sAClaude Fable 5 (with fal…DeepSeek V4 Pro (max): 6.9s6.9sDDeepSeek V4 Pro (max)GPT-5.5 (Non-reasoning): 6.6s6.6sAIGPT-5.5 (Non-reasoning)Kimi K2.6: 6.6s6.6sKKimi K2.6GPT-5.5 (xhigh): 5.7s5.7sAIGPT-5.5 (xhigh)MiniMax-M3: 5.2s5.2s?MiniMax-M3Grok 4.3 (Non-reasoning): 3.8s3.8sxGrok 4.3 (Non-reasoning)Nova 2.0 Pro Preview: 3.5s3.5s?Nova 2.0 Pro Preview

Latency: Time To First Answer Token

Seconds to first answer token received · Accounts for reasoning model 'thinking' time · Evaluation results measured independently by Artificial Analysis

Source and methodology are summarized below

Chart source and provenance are listed in Methodology & sources below.

0s25s50s75s100sDeepSeek V4 Pro (max): 61s61sDDeepSeek V4 Pro (max)Kimi K2.6: 58s58sKKimi K2.6MiniMax-M3: 21s21s?MiniMax-M3GLM-5.2 (max): 9.3s9.3s?GLM-5.2 (max)Nemotron 3 Ultra: 9.2s9.2sNNemotron 3 Ultragpt-oss-120b (high): 6.3s6.3sAIgpt-oss-120b (high)Grok 4.3 (Non-reasoning): 0s0sxGrok 4.3 (Non-reasoning)GPT-5.5 (Non-reasoning): 0s0sAIGPT-5.5 (Non-reasoning)Nova 2.0 Pro Preview: 0s0s?Nova 2.0 Pro PreviewClaude Opus 4.6 (high): 0s0sAClaude Opus 4.6 (high)

Context, Cost & Pricing

Context window size, cost per task, and token pricing.

Context Window

Context window: tokens limit · Higher is better · Evaluation results measured independently by Artificial Analysis

Source and methodology are summarized below

Chart source and provenance are listed in Methodology & sources below.

0250k500k750k1MClaude Opus 4.6 (high): 1M1MAClaude Opus 4.6 (high)Gemini 3.5 Flash: 1M1MGGemini 3.5 FlashClaude Fable 5 (with fallback): 1M1MAClaude Fable 5 (with fal…GLM-5.2 (max): 1M1M?GLM-5.2 (max)DeepSeek V4 Pro (max): 1M1MDDeepSeek V4 Pro (max)Grok 4.3 (high): 1M1MxGrok 4.3 (high)MiniMax-M3: 1M1M?MiniMax-M3Claude Sonnet 5 (Non-reasoning): 1M1MAClaude Sonnet 5 (Non-rea…Grok 4.3 (Non-reasoning): 1M1MxGrok 4.3 (Non-reasoning)GPT-5.5 (xhigh): 922k922kAIGPT-5.5 (xhigh)

Cost per Intelligence Index Task

Weighted average cost (USD) per Artificial Analysis Intelligence Index task, segmented by token type. Lower is better · Evaluation results measured independently by Artificial Analysis

Source and methodology are summarized below

Chart source and provenance are listed in Methodology & sources below.

00.51Claude Fable 5 (with fallback): 0.40.4AClaude Fable 5 (with fal…GPT-5.5 (xhigh): 0.10.1AIGPT-5.5 (xhigh)Gemini 3.5 Flash: 0.10.1GGemini 3.5 FlashGPT-5.5 (Non-reasoning): 00AIGPT-5.5 (Non-reasoning)Qwen3.6 27B: 00QQwen3.6 27BNova 2.0 Pro Preview: 00?Nova 2.0 Pro PreviewGLM-5.2 (max): 00?GLM-5.2 (max)Grok 4.3 (Non-reasoning): 00xGrok 4.3 (Non-reasoning)Kimi K2.6: 00KKimi K2.6Nemotron 3 Ultra: 00NNemotron 3 Ultra

Cost per Task

Weighted average cost (USD) per Intelligence Index task · Lower is better · Evaluation results measured independently by Artificial Analysis

Source and methodology are summarized below

Chart source and provenance are listed in Methodology & sources below.

$0.00$1.00$2.00$3.00$4.00$5.00Claude Fable 5 (with fallback): $2.75$2.75AClaude Fable 5 (with fal…GPT-5.5 (xhigh): $0.86$0.86AIGPT-5.5 (xhigh)Gemini 3.5 Flash: $0.59$0.59GGemini 3.5 FlashGLM-5.2 (max): $0.37$0.37?GLM-5.2 (max)Kimi K2.6: $0.35$0.35KKimi K2.6Nemotron 3 Ultra: $0.24$0.24NNemotron 3 UltraGrok 4.3 (high): $0.14$0.14xGrok 4.3 (high)MiniMax-M3: $0.12$0.12?MiniMax-M3gpt-oss-120b (high): $0.06$0.06AIgpt-oss-120b (high)DeepSeek V4 Pro (max): $0.04$0.04DDeepSeek V4 Pro (max)

Cost to Run Artificial Analysis Intelligence Index

Cost (USD) to run all evaluations in the Artificial Analysis Intelligence Index · Evaluation results measured independently by Artificial Analysis

Source and methodology are summarized below

Chart source and provenance are listed in Methodology & sources below.

0200400600Claude Fable 5 (with fallback): 508508AClaude Fable 5 (with fal…GPT-5.5 (xhigh): 132132AIGPT-5.5 (xhigh)Gemini 3.5 Flash: 114114GGemini 3.5 FlashQwen3.6 27B: 8888QQwen3.6 27BGPT-5.5 (Non-reasoning): 6666AIGPT-5.5 (Non-reasoning)Nova 2.0 Pro Preview: 5353?Nova 2.0 Pro PreviewNemotron 3 Ultra: 3434NNemotron 3 UltraGLM-5.2 (max): 3333?GLM-5.2 (max)Kimi K2.6: 2525KKimi K2.6Grok 4.3 (Non-reasoning): 2222xGrok 4.3 (Non-reasoning)

Pricing: Cache Hit, Input, and Output

Price (USD per M Tokens) · Evaluation results measured independently by Artificial Analysis

Source and methodology are summarized below

Chart source and provenance are listed in Methodology & sources below.

0250k500k750k1MClaude Fable 5 (with fallback): 6161AClaude Fable 5 (with fal…GPT-5.5 (xhigh): 3636AIGPT-5.5 (xhigh)GPT-5.5 (Non-reasoning): 3636AIGPT-5.5 (Non-reasoning)Claude Opus 4.6 (high): 3131AClaude Opus 4.6 (high)Claude Sonnet 5 (Non-reasoning): 1212AClaude Sonnet 5 (Non-rea…Nova 2.0 Pro Preview: 1111?Nova 2.0 Pro PreviewGemini 3.5 Flash: 1111GGemini 3.5 FlashGLM-5.2 (max): 6.16.1?GLM-5.2 (max)Kimi K2.6: 5.15.1KKimi K2.6Claude 3.5 Haiku: 4.94.9AClaude 3.5 Haikucache Hitinputoutput

Time per Intelligence Index Task

Weighted average decode time (minutes) per task; excludes TTFT and overhead time · Lower is better · Evaluation results measured independently by Artificial Analysis

Source and methodology are summarized below

Chart source and provenance are listed in Methodology & sources below.

0510Kimi K2.6: 8.28.2KKimi K2.6DeepSeek V4 Pro (max): 6.76.7DDeepSeek V4 Pro (max)Claude Fable 5 (with fallback): 4.84.8AClaude Fable 5 (with fal…MiniMax-M3: 44?MiniMax-M3Qwen3.6 27B: 33QQwen3.6 27BGPT-5.5 (xhigh): 33AIGPT-5.5 (xhigh)GLM-5.2 (max): 2.82.8?GLM-5.2 (max)Gemini 3.5 Flash: 2.22.2GGemini 3.5 Flashgpt-oss-120b (high): 1.91.9AIgpt-oss-120b (high)Grok 4.3 (high): 1.61.6xGrok 4.3 (high)

Specifications

Technical Specifications

Claude Opus 4.6 (Non-reasoning, High Effort) scores 38 (estimated) on the Artificial Analysis Intelligence Index, placing it well above average among other non-reasoning models in a similar price tier (median: 17). Claude Opus 4.6 (Non-reasoning, High Effort) generates output at 42.6 tokens per second (based on Anthropic's API), which is at the lower end compared to other non-reasoning models in a similar price tier (median: 64.2 t/s). Claude Opus 4.6 (Non-reasoning, High Effort) costs $5.00 per 1M input tokens (at the higher end, median: $1.88) and $25.00 per 1M output tokens (at the higher end, median: $7.75), based on Anthropic's API.

Claude Opus 4.6 (high)

Model type
Open weights
Reasoning
No
Input modalities
Claude Opus 4.6 (Non-reasoning, High Effort) supports text and image input.
Output modalities
Claude Opus 4.6 (Non-reasoning, High Effort) supports text output.
Context window
Claude Opus 4.6 (Non-reasoning, High Effort) has a context window of 1.0M tokens. This determines how much text and conversation history the model can process in a single request.
Open weights / source
No, Claude Opus 4.6 (Non-reasoning, High Effort) is proprietary. The model weights are not publicly available.
Parameters
Claude Opus 4.6 (Non-reasoning, High Effort) is a proprietary model and Anthropic has not disclosed the model size or parameter count.
API availability
Yes, Claude Opus 4.6 (Non-reasoning, High Effort) is available via API through 4 providers.

Methodology & Provenance

This page is rendered from the normalized profile and page JSON for Claude Opus 4.6 (high).

Benchmark values are preserved as normalized; only layout, disclosure ordering, and typography are adjusted for readability.

Frequently Asked Questions