Migrating from claude-instant-1.2 to claude-haiku-4-5-20251001
What changes when you move from claude-instant-1.2 to claude-haiku-4-5-20251001: prices, limits, features and parameters, read from each company's own pages.
- Status
- Retired
- Shutdown
- Nov 6, 2024
- Time left
- —
- Status
- Active
- Shutdown
- not before Oct 15, 2026
- Time left
- —
Prices
USD per 1M tokens, standard tier| Type | claude-instant-1.2 | claude-haiku-4-5-20251001 | Change |
|---|---|---|---|
| Input | Not published | $1.00first seen October 1, 2026 · source | — |
| Cached input | Not published | $0.10first seen October 1, 2026 · source | — |
| Output | Not published | $5.00first seen October 1, 2026 · source | — |
Other tiers, prompt-size bands and modalities are on each model's page.
Limits
Tokens| Limit | claude-instant-1.2 | claude-haiku-4-5-20251001 | Change |
|---|---|---|---|
| Context window | Not published | 200,000 tokensin place when tracking began (October 6, 2026) · source | — |
| Max output tokens | Not published | 64,000 tokensin place when tracking began (October 6, 2026) · source | — |
Features and parameters
Compare modelsNo feature is published for both models, so none can be compared.
Not published for claude-instant-1.2: Structured outputs, Function calling, Prompt caching, Batch API, Image input, PDF input, Reasoning / thinking, Fine-tuning, Built-in web search, temperature parameter, top_p parameter, logprobs, Context window, Max output tokens.
Not published for claude-haiku-4-5-20251001: Structured outputs, Function calling, PDF input, Fine-tuning, Built-in web search, temperature parameter, top_p parameter, logprobs.
Aliases
All aliasesNo aliases point at claude-instant-1.2.
Aliases pointing at claude-haiku-4-5-20251001: claude-haiku-4-5 (in place when tracking began (October 6, 2026) · source)
On cloud platforms
All platform dates| Model | Platform | Platform ID | Shutdown | Time left |
|---|---|---|---|---|
| claude-haiku-4-5-20251001 | Amazon Bedrock | anthropic.claude-haiku-4-5 | not before Oct 16, 2026Active | |
| claude-haiku-4-5-20251001 | Microsoft Foundryversion 1 | claude-haiku-4-5 | Nov 15, 2026Active | 31 days |
| claude-haiku-4-5-20251001 | Microsoft Foundryversion 2 | claude-haiku-4-5 | Nov 15, 2026Active | 31 days |
Read daily from each platform's own pages. The status above uses each company's own date. Time left counts to 00:00 UTC on the shutdown date, which is the evening before in ET.
Checklist
- Change the model string from
claude-instant-1.2toclaude-haiku-4-5-20251001.
Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: claude-instant-1.2, claude-haiku-4-5-20251001.