Claude Sonnet 5
No shutdown before this date. Claude Sonnet 5 stays on Google Vertex AI until at least Dec 24, 2026.
≥ 2 mo- Earliest retirement
- ≥ 71 daysDec 24, 2026 · Google Vertex AI
- Arena Text
- 1,461#30 of 128 · Arena
- GPQA Diamond
- 90.5%#34 of 108 · Epoch AI
- List price · $ per 1M
- $2.00 in $10.00 outClaude API · cached input $0.20
- Context window
- 1MMax output 128K 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-sonnet-5Legacy | – | ≥ 9 moNot sooner than | – |
| Azure AI FoundryMicrosoft: Model retirement schedule - Microsoft Foundry (opens in a new tab) · checked Oct 14, 2026 | claude-sonnet-5:1Active | – | 9 mo | – |
| Azure AI FoundryMicrosoft: Model retirement schedule - Microsoft Foundry (opens in a new tab) · checked Oct 14, 2026 | claude-sonnet-5:2Active | – | 9 mo | – |
| Amazon BedrockAmazon Web Services: Amazon Bedrock ListFoundationModels, us-east-1 (opens in a new tab) · checked Oct 14, 2026 | anthropic.claude-sonnet-5Active · also au.anthropic.claude-sonnet-5, eu.anthropic.claude-sonnet-5, global.anthropic.claude-sonnet-5, in.anthropic.claude-sonnet-5, us.anthropic.claude-sonnet-5 | – | ≥ 9 moNot sooner than | – |
| Google Vertex AIGoogle Cloud: Claude Sonnet 5 on Google Cloud (opens in a new tab) · checked Oct 14, 2026 | claude-sonnet-5Active | – | ≥ 2 moNot sooner than | – |
Anthropic lists it as a legacy model and recommends Claude Sonnet 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 Sonnet 5
No breaking changes are recorded for the move to Claude Sonnet 5.5. Run your own cases on it before the date.
Intelligence
| Benchmark | Publisher | Score | Rank | Published |
|---|---|---|---|---|
| Arena Text | Arena | 1,461 ± 2 | #30 of 128 | Oct 8, 2026 |
| GPQA Diamond | Epoch AI | 90.5% ± 1.8% | #34 of 108 | Jul 1, 2026 |
| Arena WebDev | Arena | 1,541 ± 3 | #27 of 69 | Oct 8, 2026 |
| Arena Agent | Arena | 0 ± 0 | #14 of 35 | Oct 12, 2026 |
| FrontierMath Tier 4 | Epoch AI | 29.3% ± 7.2% | #27 of 58 | Jun 30, 2026 |
| FrontierMath Tiers 1-3 | Epoch AI | 65.6% ± 2.8% | #30 of 71 | Jun 30, 2026 |
| OTIS Mock AIME 2024-2025 | Epoch AI | 94.7% ± 2.3% | #33 of 105 | Jul 1, 2026 |
| SimpleQA Verified | Epoch AI | 33.7% ± 1.5% | #49 of 68 | Aug 27, 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-sonnet-5 | $2.00 | $0.20 | $10.00 | Jun 30, 2026Current · Announced at launch as an introductory price; it became the standard price. | Anthropic: Pricing (opens in a new tab) |
Amazon Bedrockanthropic.claude-sonnet-5 | $2.20 | $0.22 | $11.00 | 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-sonnet-5 | $2.00 | $0.20 | $10.00 | Jun 30, 2026Current · Global endpoint price; regional and multi-region endpoints cost more. | Google Cloud: Agent Platform pricing (opens in a new tab) |
Change history
Price changeClaude Sonnet 5 keeps its launch priceClaude API
The launch price, first announced as introductory through August 31, 2026, is now the standard price. The increase planned for September 1, 2026 did not take effect.
- Platform
- Claude API
- Model
- Claude Sonnet 5