Migrating from claude-sonnet-4-20250514 to claude-sonnet-5-5
What changes when you move from claude-sonnet-4-20250514 to claude-sonnet-5-5: input price −33.3%, output price −33.3%.
- Status
- Retired
- Shutdown
- Jun 15, 2026
- Time left
- —
- Status
- Active
- Shutdown
- not before Sep 28, 2027
- Time left
- —
Prices
USD per 1M tokens, standard tier| Type | claude-sonnet-4-20250514 | claude-sonnet-5-5 | Change |
|---|---|---|---|
| Input | $3.00first seen October 1, 2026 · source | $2.00first seen October 1, 2026 · source | −33.3% |
| Cached input | $0.30first seen October 1, 2026 · source | $0.10first seen October 8, 2026 · source | −66.7% |
| Output | $15.00first seen October 1, 2026 · source | $10.00first seen October 1, 2026 · source | −33.3% |
At 1M input and 250K output tokens a month: $6.75 on claude-sonnet-4-20250514, $4.50 on claude-sonnet-5-5 (−33.3%).
Other tiers, prompt-size bands and modalities are on each model's page.
Limits
Tokens| Limit | claude-sonnet-4-20250514 | claude-sonnet-5-5 | Change |
|---|---|---|---|
| Context window | Not published | 1,000,000 tokensin place when tracking began (October 6, 2026) · source | — |
| Max output tokens | Not published | 128,000 tokensin place when tracking began (October 6, 2026) · source | — |
Benchmarks
Same benchmark and source on both sides; settings named where they differ| Benchmark | claude-sonnet-4-20250514 | claude-sonnet-5-5 | Change |
|---|---|---|---|
| Arena TextArena, xhigh effort (vs thinking 32k). Ranges don't overlap. | 1402 ±4 | 1475 ±8 | +73 |
| Arena Text: CodingArena, xhigh effort (vs thinking 32k). Ranges don't overlap. | 1474 ±8 | 1527 ±15 | +53 |
| Arena VisionArena, xhigh effort (vs thinking 32k). Ranges don't overlap. | 1206 ±17 | 1266 ±14 | +60 |
| GPQA DiamondEpoch AI, max effort (vs 59k). | 79.2% | 95.6% | +16.4 pts |
| OTIS Mock AIME 2024-2025Epoch AI, max effort (vs 32k). | 71.1% | 100.0% | +28.9 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: Arena (arena.ai), CC BY 4.0; Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.
Features and parameters
Compare modelsNo feature is published for both models, so none can be compared.
Not published for claude-sonnet-4-20250514: 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-sonnet-5-5: Structured outputs, Function calling, PDF input, Fine-tuning, Built-in web search, logprobs.
Aliases
All aliasesNo aliases point at either model.
On cloud platforms
All platform dates| Model | Platform | Platform ID | Shutdown | Time left |
|---|---|---|---|---|
| claude-sonnet-4-20250514 | Amazon Bedrock | anthropic.claude-sonnet-4-20250514-v1:0 | Oct 14, 2026Retired on October 14, 2026 | |
| claude-sonnet-5-5 | Amazon Bedrock | anthropic.claude-sonnet-5-5 | not before Sep 28, 2027Active |
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-sonnet-4-20250514toclaude-sonnet-5-5.
Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: claude-sonnet-4-20250514, claude-sonnet-5-5.