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Claude Haiku 5.5

Anthropic · Sorti oct. 2026

Conditionnel

Claude Haiku 5.5 is a conditional pick: Anthropic's fastest and cheapest current Claude at $0.10 input and $0.50 output per 1M tokens, with a 1M context and adjustable effort. Prompts over 100K tokens cost five times as much, and every benchmark is Anthropic's own. Right for high-volume classification, extraction, routing and subagent work. Use Sonnet 5.5 for complex agentic coding, where Anthropic's own Terminal-Bench 4.0 numbers put it well ahead.

Est-ce fait pour vous ?

Recommandé pour

  • High-volume, latency-sensitive work such as classification, extraction, routing and subagent tasks, which is the use Anthropic names for it
  • Cost at scale: $0.10 input and $0.50 output per 1M tokens up to 100K-token prompts, cache reads $0.01, Batch API at 50% off
  • Long inputs: 1M-token context and 128K output, with 300K output on the Batches API behind a beta header
  • Multi-cloud buyers: the Claude API, Amazon Bedrock, Google Cloud, Microsoft Foundry and Claude Platform on AWS all offer Haiku 5.5

Déconseillé pour

  • Cost-sensitive prompts over 100K tokens: input rises to $0.50 and output to $2.50 per 1M, five times Haiku 5.5's own base rate, and cache reads count toward the threshold
  • Complex agentic coding: Anthropic's own table has Haiku 5.5 at 39.2% on Terminal-Bench 4.0 against Sonnet 5.5 at 70.6%
  • Code that sets temperature, top_p or top_k: any non-default value returns a 400 error
  • Penetration testing: Anthropic says the safeguards still block it
  • Decisions that need independently reproduced scores: every published number is Anthropic's

Performances par tâche

Classification and extraction

Good

Anthropic states this as the model's purpose; vendor-stated, no benchmark for it was read, and untested by us

Agentic coding

Fair

Terminal-Bench 4.0 39.2% and FrontierCode 1.1 46.4% in Anthropic's table, both below Sonnet 5.5; vendor-reported, untested by us

Computer use

Good

OSWorld 2.1 offline subset 72.4% in Anthropic's table, against 83.9% for Sonnet 5.5; vendor-reported, untested by us

Tarifs

Entrée

$0.10 / 1M tokens

Sortie

$0.50 / 1M tokens

Contexte

1M ctx; prompts over 100K cost $0.50/$2.50

Voir tous les tarifs

Tests de performance

TestScoreSource
GDPval-AA v2.1 (Anthropic-reported)1620 Source
OSWorld 2.1, offline subset (Anthropic-reported)72.4% Source
Humanity's Last Exam, with tools (Anthropic-reported)57.4% Source
Terminal-Bench 4.0 (Anthropic-reported)39.2% Source
FrontierCode 1.1 (Anthropic-reported)46.4% Source

Aucun changement de verdict pour l’instant

L’horloge tourne dès le premier jour : les changements apparaîtront ici à mesure que notre verdict évolue.

Journal de vérification

Aucune vérification pour le moment

Nous n’avons pas encore enregistré de vérification pour cette entrée. Dès qu’une vérification s’exécute, son historique apparaît ici.

Comment nous évaluons