Claude Haiku 4.5
No shutdown before this date. Claude Haiku 4.5 stays on the Claude API until at least Oct 15, 2026.
≥ Tomorrow- Earliest retirement
- ≥ TomorrowOct 15, 2026 · Claude API
- Arena Text
- 1,414#67 of 128 · Arena
- GPQA Diamond
- 71.2%#76 of 108 · Epoch AI
- List price · $ per 1M
- $1.00 in $5.00 outClaude API · cached input $0.10
- Context window
- 200KMax output 64K tokens
Dates on every platform
| Platform | Model ID and status | Deprecated | Shuts down | Replacement |
|---|---|---|---|---|
| Claude APIAnthropic: Model deprecations (opens in a new tab) · checked Oct 14, 2026 | claude-haiku-4-5-20251001Legacy · also claude-haiku-4-5 | – | ≥ TomorrowNot sooner than | – |
| Azure AI FoundryMicrosoft: Model retirement schedule - Microsoft Foundry (opens in a new tab) · checked Oct 14, 2026 | claude-haiku-4-5:1Active | – | 32 days | – |
| Azure AI FoundryMicrosoft: Model retirement schedule - Microsoft Foundry (opens in a new tab) · checked Oct 14, 2026 | claude-haiku-4-5:2Active | – | 32 days | – |
| Amazon BedrockAmazon Web Services: Amazon Bedrock ListFoundationModels, us-east-1 (opens in a new tab) · checked Oct 14, 2026 | anthropic.claude-haiku-4-5-20251001-v1:0Active · also anthropic.claude-haiku-4-5, au.anthropic.claude-haiku-4-5-20251001-v1:0, eu.anthropic.claude-haiku-4-5-20251001-v1:0, global.anthropic.claude-haiku-4-5-20251001-v1:0, in.anthropic.claude-haiku-4-5-20251001-v1:0, jp.anthropic.claude-haiku-4-5-20251001-v1:0, us.anthropic.claude-haiku-4-5-20251001-v1:0 | – | ≥ 2 daysNot sooner than | – |
| Google Vertex AIGoogle Cloud: Claude Haiku 4.5 on Google Cloud (opens in a new tab) · checked Oct 14, 2026 | claude-haiku-4-5@20251001Active · also claude-haiku-4-5 | – | ≥ TomorrowNot sooner than | – |
Anthropic lists it as a legacy model and recommends Claude Haiku 5.5.
Version 1 runs on Anthropic infrastructure.
Version 2 runs on Azure infrastructure.
In us-east-1, requests go through a cross-Region inference profile (listed in aliases).
What breaks when you move off Claude Haiku 4.5
Intelligence
| Benchmark | Publisher | Score | Rank | Published |
|---|---|---|---|---|
| Arena Text | Arena | 1,414 ± 1 | #67 of 128 | Oct 8, 2026 |
| GPQA Diamond | Epoch AI | 71.2% ± 3.2% | #76 of 108 | Oct 22, 2025 |
| Arena WebDev | Arena | 1,330 ± 3 | #56 of 69 | Oct 8, 2026 |
| OTIS Mock AIME 2024-2025 | Epoch AI | 66.7% ± 7.1% | #73 of 105 | Oct 22, 2025 |
| SimpleQA Verified | Epoch AI | 13.2% ± 1.1% | #62 of 68 | Aug 10, 2026 |
Arena (arena.ai), https://arena.ai/leaderboard
Epoch AI, ‘Capabilities & benchmarking’. Published online at epoch.ai. Retrieved from ‘https://epoch.ai/benchmarks’ [online resource].
List prices
| Platform | Input | Cached | Output | In effect | Source |
|---|---|---|---|---|---|
Claude APIclaude-haiku-4-5-20251001 | $1.00 | $0.10 | $5.00 | Oct 15, 2025Current | Anthropic: Pricing (opens in a new tab) |
Amazon Bedrockanthropic.claude-haiku-4-5-20251001-v1:0 | $1.10 | $0.11 | $5.50 | Sep 1, 2026Current · Standard tier, in-Region or geographic cross-Region inference, which Bedrock prices 10% above global cross-Region inference. | Amazon Web Services: AWS Price List API: AmazonBedrockFoundationModels, us-east-1 (opens in a new tab) |
Google Vertex AIclaude-haiku-4-5@20251001 | $1.00 | $0.10 | $5.00 | Oct 15, 2025Current · Global endpoint price; regional and multi-region endpoints cost more. | Google Cloud: Agent Platform pricing (opens in a new tab) |
Change history
ShutdownClaude Haiku 4.5 retires on Azure AI FoundryAzure AI Foundry1 break
Both versions of claude-haiku-4-5 on Foundry, hosted by Anthropic and hosted on Azure, retire on the same day.
- Platform
- Azure AI Foundry
- Model
- Claude Haiku 4.5
- AvailabilityInference requests to retired deployments return 410 Gone.
Source: Microsoft, Model retirement schedule - Microsoft Foundry (opens in a new tab); Microsoft, Microsoft Foundry Models lifecycle and support policy (opens in a new tab)
ShutdownClaude Haiku 3 shut down on the Claude APIClaude API
Requests to claude-3-haiku-20240307 fail from the retirement date. Anthropic named Claude Haiku 4.5 as the replacement.
- Platform
- Claude API
- Model
- Claude Haiku 3
- Replacement
- Claude Haiku 4.5
- Announced