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Pyyan / Compare / Claude Haiku 4.5 vs Claude Sonnet 5

Claude Haiku 4.5 vs Claude Sonnet 5

2 of 5

Language Models · verified 13 Aug 2026

Claude Haiku 4.5Anthropiccurrent
Claude Sonnet 5Anthropiccurrent
3 slots left
SpecificationClaude Haiku 4.5Claude Sonnet 5
SummaryFastest and cheapest Claude tier.Near-Opus quality on coding and agentic work at Sonnet cost.
Context200K1M
Input ($/Mtok)$1$3
Output ($/Mtok)$5$15
LicenceProprietaryProprietary
Max output64K128K
Model IDclaude-haiku-4-5claude-sonnet-5
CategoryLanguage ModelsLanguage Models
OfficialAnthropic ↗Anthropic ↗

Highlighted rows are where these differ.

Claude Haiku 4.5

Fastest and cheapest Claude tier.

Best for classification and subagents.

Full spec sheet →

Claude Sonnet 5

  • Adaptive thinking on by default
  • New tokenizer — roughly 30% more tokens for the same text
  • Introductory $2/$10 through 31 Aug 2026

Best for high-volume production.

Full spec sheet →