Claude Sonnet 5

Claude Sonnet 5 is the live mid-tier Claude row on the models overview, not leftover Claude Sonnet 4.5. Leftover Sonnet 4.5 on this site is still the billed $3 / $15, 200k snapshot.

Compare Claude Haiku 4.5 if you wanted the live cheap row, Claude Opus 5 if you wanted the live Opus path, and leftover Claude Sonnet 4.5 if you still had the older $3 / $15 bookmark.

Key Features

• Live mid-tier Claude row: First-party table prints Sonnet 5 at $2 / $10 and 1M context.
• Not leftover Sonnet 4.5: The leftover 4.5 page stays a billed previous snapshot at $3 / $15 and 200k.
• Cheaper than Opus 5 / Fable 5: Same 1M window class, lower printed input / output.
• Website is the models overview: Confirm that table before you hard-code an id.

Use Cases

• People who need the current mid Claude row after leftover Sonnet 4.5 was rewritten.
• People comparing Sonnet 5 vs leftover Sonnet 4.5 vs Haiku 4.5.
• People who were about to paste $3 / $15 as the current Sonnet default.

Confirm the overview for the exact API id.

Pricing

First-party pages on 2026-08-18.

If a leftover blog still calls Sonnet 4.5 the current mid Claude default, treat this page as the correction.

Getting Started

1. Open the models overview and confirm the Sonnet 5 row.
2. Confirm Claude Haiku 4.5 if you wanted the cheaper 200k row.
3. Confirm leftover Claude Sonnet 4.5 only if production is still pinned there.
4. Do not paste leftover $3 / $15 onto Sonnet 5.

Frequently Asked Questions

Is this the same as Claude Sonnet 4.5?

No. Claude Sonnet 4.5 is a leftover billed snapshot at $3 / $15 and 200k.

Same as Claude Haiku 4.5?

No. Claude Haiku 4.5 is the live cheap $1 / $5, 200k row.

Is Sonnet 5 the Claude flagship?

No. The same table still leads higher work at Opus 5 and Fable 5.

Alternatives

• Claude Haiku 4.5: Live cheap / fast Claude row.
• Claude Opus 5: Live Opus path at $5 / $25.
• GPT-5.6 Sol: Live OpenAI frontier chat if you wandered here for a current model.

Tips

1. Call Sonnet 5 the live mid-tier 1M row, not leftover Sonnet 4.5.
2. Confirm the overview for the exact API id before you pin production.

Conclusion

Claude Sonnet 5 is the live mid-tier Claude row at $2 / $10 and 1M context. Start at the models overview, then decide whether Claude Haiku 4.5 or Claude Opus 5 already covers the path you need.