Migrating from claude-sonnet-4-6 to claude-sonnet-5
What changes when you move from claude-sonnet-4-6 to claude-sonnet-5: input price −33.3%, output price −33.3%.
- Status
- Active
- Shutdown
- not before Feb 17, 2027
- Time left
- —
- Status
- Active
- Shutdown
- not before Jun 30, 2027
- Time left
- —
Prices
USD per 1M tokens, standard tier| Type | claude-sonnet-4-6 | claude-sonnet-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 | $0.20first seen October 1, 2026 · source | −33.3% |
| 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-4-6, $4.50 on claude-sonnet-5 (−33.3%).
Other tiers, prompt-size bands and modalities are on each model's page.
Limits
Tokens| Limit | claude-sonnet-4-6 | claude-sonnet-5 | Change |
|---|---|---|---|
| Context window | 1,000,000 tokensin place when tracking began (October 6, 2026) · source | 1,000,000 tokensin place when tracking began (October 6, 2026) · source | 0% |
| Max output tokens | 128,000 tokensin place when tracking began (October 6, 2026) · source | 128,000 tokensin place when tracking began (October 6, 2026) · source | 0% |
Benchmarks
Same benchmark and source on both sides; settings named where they differ| Benchmark | claude-sonnet-4-6 | claude-sonnet-5 | Change |
|---|---|---|---|
| Arena TextArena, high effort (vs no setting). Ranges don't overlap. | 1472 ±4 | 1461 ±4 | −11 |
| Arena Text: CodingArena, high effort (vs no setting). | 1528 ±6 | 1520 ±6 | −8 within range |
| Arena WebDevArena, high effort (vs no setting). Ranges don't overlap. | 1522 ±5 | 1540 ±6 | +18 |
| Arena VisionArena, high effort (vs no setting). | 1275 ±6 | 1263 ±7 | −12 within range |
| Arena SearchArena. | 1202 ±5 | 1193 ±6 | −9 within range |
| Arena DocumentArena, high effort (vs no setting). | 1478 ±6 | 1476 ±8 | −2 within range |
GPQA DiamondEpoch AI, xhigh effort (vs 32k).Other settings
| 87.4% | 90.5% | +3.1 pts |
OTIS Mock AIME 2024-2025Epoch AI, xhigh effort (vs 32k).Other settings
| 85.8% | 94.7% | +8.9 pts |
SimpleQA VerifiedEpoch AI, max effort.Other settings
| 32.8% | 33.7% | +0.9 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 modelsSame on both
- Prompt caching: supported on both.claude-sonnet-4-6: in place when tracking began (October 6, 2026) · source · claude-sonnet-5: in place when tracking began (October 6, 2026) · source
- Batch API: supported on both.claude-sonnet-4-6: in place when tracking began (October 6, 2026) · source · claude-sonnet-5: in place when tracking began (October 6, 2026) · source
- Image input: supported on both.claude-sonnet-4-6: in place when tracking began (October 6, 2026) · source · claude-sonnet-5: in place when tracking began (October 6, 2026) · source
- Reasoning / thinking: supported (thinking: adaptive, extended deprecated; default effort: high) on claude-sonnet-4-6, supported (thinking: adaptive; default effort: high) on claude-sonnet-5.claude-sonnet-4-6: in place when tracking began (October 6, 2026) · source · claude-sonnet-5: in place when tracking began (October 6, 2026) · source
Not published for claude-sonnet-4-6: Structured outputs, Function calling, PDF input, Fine-tuning, Built-in web search, temperature parameter, top_p parameter, logprobs.
Not published for claude-sonnet-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-4-6 | Amazon Bedrock | anthropic.claude-sonnet-4-6 | not before Feb 17, 2027Active | |
| claude-sonnet-4-6 | Microsoft Foundryversion 1 | claude-sonnet-4-6 | Feb 10, 2027Active | 118 days |
| claude-sonnet-5 | Amazon Bedrock | anthropic.claude-sonnet-5 | not before Jun 30, 2027Active | |
| claude-sonnet-5 | Microsoft Foundryversion 1 | claude-sonnet-5 | Jun 30, 2027Active | 258 days |
| claude-sonnet-5 | Microsoft Foundryversion 2 | claude-sonnet-5 | Jun 30, 2027Active | 258 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-sonnet-4-6toclaude-sonnet-5.
Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: claude-sonnet-4-6, claude-sonnet-5.