Chat & Reasoning Model · Anthropic
Claude Sonnet 5
Claude Sonnet 5 is the newest Sonnet, with the best speed-to-intelligence balance in the Claude family — a daily driver for coding, agents, and long-context work. Its intro pricing runs through August 31, 2026, and its newer tokenizer uses roughly 30% more tokens than Sonnet 4.6.
At a glance (verified 2026-07-18)
- Vendor
- Anthropic
- Type
- Chat & Reasoning Model
- Pricing
- Intro through Aug 31, 2026: $2 in / $0.20 cache hits / $10 out per 1M tokens. Cache writes: $2.50 5m / $4 1h. Rises to $3 in / $15 out base on Sep 1. Newer tokenizer uses ~30% more tokens than Sonnet 4.6.
Best for
How to use Claude Sonnet 5 in TeamDay
Select Claude Sonnet 5 in TeamDay's chat model picker on the Claude Code harness.
Frequently asked questions
How much does Claude Sonnet 5 cost?
Intro pricing through August 31, 2026 is $2 per 1M input tokens, $0.20 cache hits, $10 per 1M output tokens (cache writes $2.50 5m / $4 1h). Base pricing rises to $3 in / $15 out on September 1.
Does Claude Sonnet 5 use more tokens than Sonnet 4.6?
Yes — its newer tokenizer uses about 30% more tokens than Sonnet 4.6, which partly offsets the lower per-token price.
Is Claude Sonnet 5 good for coding?
It is pitched as the daily driver for coding, agents, and long-context work — the best speed-to-intelligence balance in the Claude lineup. In TeamDay it runs on the Claude Code harness.
Related
- Claude Fable 5 — Chat & Reasoning Model
- Claude Haiku 4.5 — Chat & Reasoning Model
- GPT-5.6 (Sol, Terra, Luna) — Chat & Reasoning Model
Claude Sonnet 5is one of the models TeamDay's AI employees already run — no API keys, no infrastructure.
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