Claude v1
Claude v1 is a previous early Anthropic text snapshot, not the live Claude default. The Claude models overview now leads with Fable 5 ($10 / $50, 1M), Opus 5 ($5 / $25, 1M), Sonnet 5 ($2 / $10, 1M), and Haiku 4.5 ($1 / $5, 200k). Live pages on this site already include Claude Opus 5, Claude Fable 5, and Claude Opus 4.6.
Compare leftover Claude 3 Haiku if you wanted the leftover fast twin already rewritten as previous, leftover Claude 3.5 Sonnet if you wanted the leftover 3.5 twin, and Claude Haiku 4.5 if you wanted the live cheap Claude row.
Key Features
- Previous early Claude snapshot: older copy treated v1 as a current low-latency, high-throughput text engine. Confirm the models overview before you hard-code it.
- Not the 2026 Claude lead: Live docs lead with Claude 5 / Haiku 4.5. This page is a historical bookmark.
- No invented page-count crown: Do not paste leftover "hundreds of pages" as a 2026 census unless you re-run a first-party card.
- No invented 2026 dollar row for v1: Confirm the overview before you quote a current Claude v1 price.
Use Cases
- People with a Claude v1 bookmark who need the catalog corrected.
- People who were about to call it Anthropic's current text-generation leader.
Limitation: We did not call a claude-v1 id or invent a 2026 per-token price.
Pricing
First-party pages on 2026-08-18.
| Piece | Price | Notes |
|---|---|---|
| Claude v1 | Previous snapshot | Confirm the models overview. |
| Live cheap Claude | Haiku 4.5 $1 / $5 | Claude Haiku 4.5, 200k context. |
| Live mid Claude | Sonnet 5 $2 / $10 | Claude Sonnet 5, 1M context. |
| Live Claude lead | Fable 5 / Opus 5 | Fable 5 $10 / $50; Opus 5 $5 / $25. |
If a leftover blog still calls Claude v1 Anthropic's current text engine, treat the 2026 overview as the correction.
Getting Started
- Open the models overview before you hard-code Claude v1.
- Confirm Claude Haiku 4.5 or Claude Sonnet 5 if you wanted a live Claude path.
- Confirm leftover Claude 3 Haiku if you wanted the leftover fast twin.
- Do not paste "current text-generation leader" into a 2026 deck.
Frequently Asked Questions
Is Claude v1 still Anthropic's text default?
No. Live docs lead with Fable 5, Opus 5, Sonnet 5, and Haiku 4.5.
Same as Claude 3 Haiku?
No. Claude 3 Haiku is a leftover later fast twin already rewritten as previous.
Is there a later cheap Claude page on this site?
Yes. Start at Claude Haiku 4.5.
Alternatives
- Claude Haiku 4.5: Live cheap / fast Claude row.
- Claude Sonnet 5: Live mid-tier 1M Claude row.
- GPT-5.6 Sol: Live OpenAI frontier chat if you wandered here for a current model.
Tips
- Call Claude v1 a previous early snapshot, not the current text default.
- Point new Claude work at Haiku 4.5 / Sonnet 5 / Opus 5 / Fable 5.
- Confirm the overview before you invent a v1 dollar row.
Conclusion
Claude v1 is a leftover early Anthropic snapshot, not the 2026 Claude default. Start at the models overview, then decide whether Claude Haiku 4.5 or Claude Sonnet 5 already covers the path you need.
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