Claude Haiku 5.5
Anthropic · Sorti oct. 2026
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
Anthropic states this as the model's purpose; vendor-stated, no benchmark for it was read, and untested by us
Agentic coding
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
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
Tests de performance
Aucun changement de verdict pour l’instant
L’horloge tourne dès le premier jour : les changements apparaîtront ici à mesure que notre verdict évolue.
Sources
- Claude API docs: Pricingoct. 2026
- Claude API docs: Claude Haiku 5.5 model pageoct. 2026
- Claude API docs: Models overviewoct. 2026
- Anthropic: Introducing Claude Haiku 5.5oct. 2026
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.