Claude Sonnet 4.5
claude-sonnet-4-5
Claude Sonnet 4.5 is a text model from Anthropic. The snapshot records a release date of 2025-09-29. Context window: 200K tokens. Maximum output: 64K tokens. Input: text, images, PDF. Output: text. Capabilities recorded: reasoning, tool calls.
Directory snapshot 2026-10-26 · Chinese dossier: 完整中文页
Official list price
CNY / 1M TOKENSOfficial list price in the directory snapshot: ¥20.05 input and ¥100.27 output per 1M tokens, in CNY. Relay prices below are what individual sites listed; they can be lower or higher, and they are not official prices.
Relay coverage
24 SITES24 sites in our public directory listed this model ID in the 2026-10-26 snapshot. Listed relay price range: ¥0.1075–¥94.125 per 1M input tokens. A listing means the model appeared on the site's public model list; it is not proof that the site serves the genuine model.
| Site | Domain | Relay price / 1M | Verification |
|---|---|---|---|
| 找模型 | api.zhaomoxing.com | ¥0.1075–¥0.688 | enterprise |
| Token 88 | t8api.com | ¥0.18–¥0.45 | enterprise |
| API快连 | apikl.ai | ¥0.18–¥0.45 | enterprise |
| MuskAI | api.muskapi.cc | ¥0.18–¥0.57 | enterprise |
| DragonAPI | newapi.dragon3api.com | ¥0.3–¥0.66 | enterprise |
| 尚猫中心 | shanmaoapi.com | ¥0.33–¥0.51 | — |
| 迈威AI | mxwell.ai | ¥0.36–¥2.85 | — |
| Toknex | toknex.me | ¥0.39–¥0.75 | enterprise |
| JBB金贝贝 | jbbt.cc | ¥0.4–¥1 | enterprise |
| Moniker | aimoniker.top | ¥0.45–¥1.2 | enterprise |
| Super API | superapi.buzz | ¥0.45–¥4.5 | — |
| Keda8AI | keda8.ai | ¥0.51 | — |
| LinoRoute | linoroute.com | ¥0.52944–¥1.76472 | personal |
| luchikey | sub2api.luchikey.com | ¥0.6–¥3.6 | enterprise |
| sidrune | sidrune.ai | ¥0.75–¥1.8 | personal |
| 8sToken | 8stoken.com | ¥0.75 | enterprise |
| 幻灵AI | api.huanling.icu | ¥0.75–¥2.1 | — |
| 合聚API | hejuapi.com | ¥0.9 | enterprise |
| 9527code | 9527.codes | ¥1.05–¥3 | enterprise |
| ITKK | itkk.lol | ¥1.05 | — |
| 智流 FluxLane | fluxlane.cn | ¥1.2–¥3.6 | enterprise |
| VovoKey｜启界 | vovokey.com | ¥1.2–¥14.4 | enterprise |
| 模方 | api.modelscube.com | ¥1.35 | personal |
| xem中转站 | ai.xem8k5.top | ¥1.365–¥94.125 | — |
How to verify this model on a relay
THREE STEPS- Send a short request to the relay and read the
modelfield in the response. It must match the ID you sent; a different ID is a mapping, not necessarily a substitution. - Run the same prompt against a known-good endpoint and compare prompt-token counts. A large, repeatable gap points at a different tokenizer or a different backend.
- Run the seven checks. Billing, context retention, error shape, parameter compliance, tools, and streaming each produce evidence you can quote.
Same publisher
AnthropicQuestions
FAQWhat is the context window of Claude Sonnet 4.5?
The snapshot records 200,000 tokens.
How much does Claude Sonnet 4.5 cost?
Official list price: ¥20.05 input / ¥100.27 output per 1M tokens in CNY, per the directory snapshot. 24 relay sites listed it at ¥0.1075–¥94.125 per 1M input tokens.
Is a relay really serving Claude Sonnet 4.5?
A model ID in a response is not proof. The seven-check detection compares tokenizer ratios, billing, error shape, parameter compliance, tools, and streaming against the advertised family. Run it on a key you can afford to spend, and treat one run as a spot check, not 24/7 monitoring.
Specifications and prices come from the 2026-10-26 public directory snapshot. We do not publish IQ scores or structured-output claims for models where we have no reliable data.