Migrating from claude-2.1 to claude-3-sonnet-20240229
What changes when you move from claude-2.1 to claude-3-sonnet-20240229: prices, limits, features and parameters, read from each company's own pages.
- From
- claude-2.1
- Status
- Retired
- Shutdown
- Jul 21, 2025
- Time left
- —
- Status
- Retired
- Shutdown
- Jul 21, 2025
- Time left
- —
claude-3-sonnet-20240229 is itself retired. Its replacement is claude-sonnet-5-5.
Prices
USD per 1M tokens, standard tierNeither model has published per-token prices.
Limits
TokensNeither company publishes a context window or output limit for these models.
Benchmarks
Same benchmark, source and setting on both sides| Benchmark | claude-2.1 | claude-3-sonnet-20240229 | Change |
|---|---|---|---|
| GPQA DiamondEpoch AI. | 33.0% | 40.6% | +7.6 pts |
| OTIS Mock AIME 2024-2025Epoch AI. | 1.9% | 2.5% | +0.6 pts |
A score from one source is never compared with another source's, and company-reported scores are compared only within the same company; settings named where they differ. Data: Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.
Features and parameters
Compare modelsNeither company publishes feature facts for these models.
Aliases
All aliasesNo aliases point at either model.
Checklist
- Change the model string from
claude-2.1toclaude-3-sonnet-20240229.
Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: claude-2.1, claude-3-sonnet-20240229.