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Anthropic · Flagships Analysis

Claude 4.5 Haiku

Intelligence, Performance & Price Analysis

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Canonical slug: claude-4-5-haiku-reasoning · Canonical model registry at build time

Intelligence

30 score

Speed

127.5 output tokens/sec

Latency

16.12s TTFT

Input Price

$1.00 / 1M tokens

Output Price

$5.00 / 1M tokens

Verbosity

88M Output tokens from Intelligence Index 3 out of 4 units for Verbosity . Compa

Executive Assessment

Routing Verdict & Tradeoffs

Ethen Routing Verdict

Frontier research / complex reasoning

Claude 4.5 Haiku (Reasoning) scores 30 on the Artificial Analysis Intelligence Index, placing it above average among other reasoning models in a similar price tier (median: 28). Claude 4.5 Haiku (Reasoning) generates output at 127.5 tokens per second (based on Anthropic's API), which is above average compared to other reasoning models in a similar price tier (median: 81.2 t/s). Claude 4.5 Haiku (Reasoning) costs $1.00 per 1M input tokens (very competitive, median: $1.50) and $5.00 per 1M output tokens (better than average, median: $8.40), based on Anthropic's API.

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

Task Fit Assessment

WorkloadRatingNotes
Complex reasoning & agentic workflowsoptimalIntelligence score 30 places this model among top performers. Suitable for multi-step analysis and agentic loops.
High-volume chat & customer-facingoptimalOutput speed 127.5 tokens/sec and capable intelligence make this suitable for real-time chat at scale.
Latency-sensitive applicationsviableTTFT 16.12s — latency may be noticeable in interactive use.
Cost-sensitive pipelinesviableOutput pricing at $5.00 is premium. Route high-volume simple tasks to cheaper alternatives.

Cost Pressure Analysis

Medium

Pricing is moderate — input $1.00, output $5.00. Costs accumulate at volume but are manageable for valuable tasks.

Cheaper substitutes: Cheaper routes for predictable extraction, labeling, or summarization

Technical Specifications

Architecture and Limits

SpecificationValueValidation Authority
Model typeProprietaryinferred
ReasoningYesfaq
Input modalitiesClaude 4.5 Haiku (Reasoning) supports text and image input.faq
Output modalitiesClaude 4.5 Haiku (Reasoning) supports text output.faq
Context window200k tokensfaq
Open weights / sourceNo, Claude 4.5 Haiku (Reasoning) is proprietary. The model weights are not publicly available.faq
ParametersClaude 4.5 Haiku (Reasoning) is a proprietary model and Anthropic has not disclosed the model size or parameter count.faq
Knowledge cutoffClaude 4.5 Haiku (Reasoning) has a knowledge cutoff of July 2025. The model's training data includes information up to this date.faq
API availabilityYes, Claude 4.5 Haiku (Reasoning) is available via API through 4 providers.faq

Evidence charts

Profile visualizations

Charts are the same canonical evidence cards previously published for this slug, contained inside the D18D page grammar.

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

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

0204060Claude Fable 5 (with fallback): 4040AClaude Fable 5 (with fal…Gemini 3.1 Pro Preview: 3333GGemini 3.1 Pro PreviewClaude Opus 4.8 (max): 2727AClaude Opus 4.8 (max)Claude Opus 4.7 (max): 2626AClaude Opus 4.7 (max)Gemini 3.5 Flash: 2323GGemini 3.5 FlashGPT-5.5 (xhigh): 2020AIGPT-5.5 (xhigh)GPT-5.5 (high): 1818AIGPT-5.5 (high)Grok 4.3 (high): 1818xGrok 4.3 (high)GPT-5.5 (medium): 1717AIGPT-5.5 (medium)Claude Sonnet 5 (max): 1515AClaude Sonnet 5 (max)

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

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

0204060Claude Fable 5 (with fallback): 6060AClaude Fable 5 (with fal…Claude Opus 4.8 (max): 5656AClaude Opus 4.8 (max)GPT-5.5 (xhigh): 5555AIGPT-5.5 (xhigh)Claude Opus 4.7 (max): 5454AClaude Opus 4.7 (max)Claude Sonnet 5 (max): 5353AClaude Sonnet 5 (max)GPT-5.5 (high): 5353AIGPT-5.5 (high)GPT-5.4 (xhigh): 5151AIGPT-5.4 (xhigh)GLM-5.2 (max): 5151?GLM-5.2 (max)GPT-5.5 (medium): 5050AIGPT-5.5 (medium)Gemini 3.5 Flash: 5050GGemini 3.5 Flash

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

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

0204060Claude Fable 5 (with fallback): 6060AClaude Fable 5 (with fal…Claude Opus 4.8 (max): 5656AClaude Opus 4.8 (max)GPT-5.5 (xhigh): 5555AIGPT-5.5 (xhigh)Claude Opus 4.7 (max): 5454AClaude Opus 4.7 (max)Claude Sonnet 5 (max): 5353AClaude Sonnet 5 (max)GPT-5.5 (high): 5353AIGPT-5.5 (high)GPT-5.4 (xhigh): 5151AIGPT-5.4 (xhigh)GLM-5.2 (max): 5151?GLM-5.2 (max)GPT-5.5 (medium): 5050AIGPT-5.5 (medium)Gemini 3.5 Flash: 5050GGemini 3.5 Flash

Intelligence

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

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

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 SparkNemotron 3 Ultra: 3838NNemotron 3 UltraGrok 4.3 (high): 3838xGrok 4.3 (high)Claude 4.5 Haiku: 3030AClaude 4.5 Haiku

Output Speed

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

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

088175263350gpt-oss-120b (high): 316316AIgpt-oss-120b (high)Nemotron 3 Ultra: 248248NNemotron 3 UltraGLM-5.2 (max): 216216?GLM-5.2 (max)Qwen3.7 Max: 206206QQwen3.7 MaxGemini 3.5 Flash: 192192GGemini 3.5 FlashGPT-5.4 mini (xhigh): 179179AIGPT-5.4 mini (xhigh)GPT-5.4 (xhigh): 168168AIGPT-5.4 (xhigh)Grok 4.3 (high): 164164xGrok 4.3 (high)Gemini 3.1 Pro Preview: 152152GGemini 3.1 Pro PreviewClaude 4.5 Haiku: 128128AClaude 4.5 Haiku

Speed

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

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

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)Claude 4.5 Haiku: 128128AClaude 4.5 HaikuMiniMax-M3: 9595?MiniMax-M3GPT-5.5 (xhigh): 8888AIGPT-5.5 (xhigh)Kimi K2.6: 7676KKimi K2.6DeepSeek V4 Pro (max): 7272DDeepSeek V4 Pro (max)

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

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

0s2.5s5s7.5s10sKimi K2.7 Code: 9.6s9.6sKKimi K2.7 CodeClaude Opus 4.7 (max): 8.9s8.9sAClaude Opus 4.7 (max)Claude Opus 4.8 (max): 7.8s7.8sAClaude Opus 4.8 (max)DeepSeek V4 Pro (max): 6.9s6.9sDDeepSeek V4 Pro (max)GPT-5.5 (medium): 6.9s6.9sAIGPT-5.5 (medium)Kimi K2.6: 6.6s6.6sKKimi K2.6GLM-5.1: 6.3s6.3s?GLM-5.1Grok Build 0.1 0616: 6.2s6.2sxGrok Build 0.1 0616GPT-5.5 (high): 6.2s6.2sAIGPT-5.5 (high)GPT-5.5 (low): 6.1s6.1sAIGPT-5.5 (low)Claude 4.5 Haiku: 3.9s3.9sAClaude 4.5 Haiku

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

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

0s25s50s75s100sDeepSeek V4 Pro (max): 61s61sDDeepSeek V4 Pro (max)Kimi K2.6: 58s58sKKimi K2.6GLM-5.1: 48s48s?GLM-5.1Kimi K2.7 Code: 43s43sKKimi K2.7 CodeGrok Build 0.1 0616: 25s25sxGrok Build 0.1 0616MiniMax-M3: 21s21s?MiniMax-M3Qwen3.7 Max: 12s12sQQwen3.7 MaxGLM-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)Claude 4.5 Haiku: 0s0sAClaude 4.5 Haiku

Context Window

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

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

0500k1M1.5M2MGPT-5.4 (xhigh): 1.1M1.1MAIGPT-5.4 (xhigh)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 Opus 4.8 (max): 1M1MAClaude Opus 4.8 (max)Claude Opus 4.7 (max): 1M1MAClaude Opus 4.7 (max)Claude Sonnet 5 (max): 1M1MAClaude Sonnet 5 (max)

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

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

00.51GPT-5.5 (xhigh): 0.10.1AIGPT-5.5 (xhigh)GPT-5.5 (high): 0.10.1AIGPT-5.5 (high)Gemini 3.5 Flash: 0.10.1GGemini 3.5 FlashGPT-5.5 (medium): 0.10.1AIGPT-5.5 (medium)GPT-5.4 (xhigh): 0.10.1AIGPT-5.4 (xhigh)GPT-5.5 (low): 00AIGPT-5.5 (low)GLM-5.1: 00?GLM-5.1Qwen3.7 Max: 00QQwen3.7 MaxGemini 3.1 Pro Preview: 00GGemini 3.1 Pro PreviewClaude 4.5 Haiku: 00AClaude 4.5 Haiku

Cost per Task

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

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

$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 UltraClaude 4.5 Haiku: $0.24$0.24AClaude 4.5 HaikuGrok 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)

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

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

050100150GPT-5.5 (xhigh): 132132AIGPT-5.5 (xhigh)GPT-5.5 (high): 119119AIGPT-5.5 (high)Gemini 3.5 Flash: 114114GGemini 3.5 FlashGPT-5.5 (medium): 9999AIGPT-5.5 (medium)GPT-5.4 (xhigh): 8989AIGPT-5.4 (xhigh)GPT-5.5 (low): 6565AIGPT-5.5 (low)Gemini 3.1 Pro Preview: 4949GGemini 3.1 Pro PreviewQwen3.7 Max: 4848QQwen3.7 MaxGLM-5.1: 4040?GLM-5.1Claude 4.5 Haiku: 3939AClaude 4.5 Haiku

Pricing: Cache Hit, Input, and Output

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

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

0250k500k750k1MClaude Opus 4.8 (max): 3131AClaude Opus 4.8 (max)Claude Sonnet 4.6 (max): 1818AClaude Sonnet 4.6 (max)GPT-5.4 (xhigh): 1818AIGPT-5.4 (xhigh)Gemini 3.1 Pro Preview: 1414GGemini 3.1 Pro PreviewClaude Sonnet 5 (max): 1212AClaude Sonnet 5 (max)Claude Sonnet 5 (Non-reasoning): 1212AClaude Sonnet 5 (Non-rea…Gemini 3.5 Flash: 1111GGemini 3.5 FlashQwen3.7 Max: 1010QQwen3.7 MaxClaude 4.5 Haiku: 6.16.1AClaude 4.5 HaikuGLM-5.2 (max): 6.16.1?GLM-5.2 (max)cache 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

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

02468DeepSeek V4 Pro (max): 6.76.7DDeepSeek V4 Pro (max)Claude Opus 4.7 (max): 5.95.9AClaude Opus 4.7 (max)GLM-5.1: 5.15.1?GLM-5.1Kimi K2.7 Code: 55KKimi K2.7 CodeClaude Fable 5 (with fallback): 4.84.8AClaude Fable 5 (with fal…MiniMax-M3: 44?MiniMax-M3Grok Build 0.1 0616: 3.83.8xGrok Build 0.1 0616GPT-5.4 (xhigh): 3.13.1AIGPT-5.4 (xhigh)GPT-5.5 (xhigh): 33AIGPT-5.5 (xhigh)GLM-5.2 (max): 2.82.8?GLM-5.2 (max)Claude 4.5 Haiku: 2.32.3AClaude 4.5 Haiku

Output Tokens per Intelligence Index Task

Weighted average number of output tokens used to run one task in the Artificial Analysis Intelligence Index · Evaluation results measured independently by Artificial Analysis

Retrieved 2026-07-08

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

Retrieval date:
2026-07-08
Methodology:
Independent test run by Artificial Analysis on dedicated hardware.

050001000015000MiniMax-M3: 1162311623?MiniMax-M3Grok Build 0.1 0616: 1013110131xGrok Build 0.1 0616Gemini 3.5 Flash: 98199819GGemini 3.5 FlashClaude Opus 4.7 (max): 97579757AClaude Opus 4.7 (max)Claude Sonnet 5 (Non-reasoning): 97099709AClaude Sonnet 5 (Non-rea…GLM-5.1: 96859685?GLM-5.1Nemotron 3 Ultra: 77977797NNemotron 3 UltraClaude Fable 5 (with fallback): 76967696AClaude Fable 5 (with fal…gpt-oss-120b (high): 75717571AIgpt-oss-120b (high)Claude 4.5 Haiku: 59305930AClaude 4.5 Haiku

Methodology

Methodology & Provenance

This page is rendered from the normalized profile and page JSON for Claude 4.5 Haiku.

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

Frequently Asked Questions

Model FAQs & Technical Disclosures

Claude 4.5 Haiku (Reasoning) was released on October 15, 2025.

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Leaderboards

Certified metric ranks, when published.

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