Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
Performance
The last 24 hours, all hosts combined. When one host fails, BazaarLink automatically routes to the next healthy one.
Hosts
Each host has its own price, and prices can differ between hosts. You can name a preferred host in your request.
| Host | Input /M | Output /M | Cache read /M | Cache write /M | First token | Throughput | Availability (24h) |
|---|---|---|---|---|---|---|---|
 Amazon Bedrock | $2.00 | $10.00 | $0.20 | $2.50 | 0.97s | 98 tps | 100.0% |
 Anthropic | $2.00 | $10.00 | $0.20 | $2.50 | 1.06s | 101 tps | 99.6% |
 Google Vertex AI | $2.00 | $10.00 | $0.20 | $2.50 | 1.26s | 108 tps | 100.0% |
Benchmarks
All scores come from Artificial Analysis's independent third-party evaluation; BazaarLink takes no part in the testing.
| Reasoning effort | Intelligence | Coding |
|---|---|---|
| max | — | — |
| xhigh | — | — |
| high · shown on this page | — | — |
| medium | — | — |
| low | — | — |
| 1 | Muse Spark 1.3 (max) __aa_parking__58a40aba-a44f-457f-9cca-75b43d4e6934 | 76 | $1.25 / $4.25 |
| 2 | GPT-6 Astra (Non-reasoning) gpt-6-astra-non-reasoning | 76 | — / — |
| 3 | Agnes 2.5 Pro Alpha (based on Qwen3.5 397B A17B) agnes-ai/agnes-2-5-pro-alpha | 59 | $0.45 / $0.9 |
| 4 | Solar Pro 4 __aa_parking__1b64aa81-c223-4b8f-909b-82185a234765 | 53 | $0.3 / $1.2 |
| 5 | G9v3-39A5B ai9star/__aa_parking__c5ccda86-5e84-4b69-9247-6d4287fc3336 | 32 | $0 / $0 |
Price comparison
BazaarLink's price, next to the market standard Artificial Analysis observes.
BazaarLink price This site
Market reference Artificial Analysis
Quick start
Just change base_url to use Claude Sonnet 5 through the BazaarLink API.
from openai import OpenAI
client = OpenAI(
base_url="https://api.bazaarlink.ai/v1",
api_key="sk-bl-YOUR_API_KEY",
)
response = client.chat.completions.create(
model="anthropic/claude-sonnet-5",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)FAQ
What is Claude Sonnet 5?
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
How much does the Claude Sonnet 5 API cost?
Claude Sonnet 5 costs $2.00 per 1M input tokens and $10.00 per 1M output tokens when accessed through BazaarLink.
How do I use Claude Sonnet 5 with the OpenAI SDK?
Set base_url to "https://api.bazaarlink.ai/v1" and use model ID "anthropic/claude-sonnet-5". All OpenAI SDK methods (chat.completions, embeddings, streaming) work without code changes.
What is the context window for Claude Sonnet 5?
Claude Sonnet 5 supports a context window of 1,000,000 tokens.
Is Claude Sonnet 5 available for free?
Claude Sonnet 5 is a paid model. BazaarLink offers free trial credits on registration so you can test it without a credit card.
Explore
- Billed in USD with TWD quotes plus Taiwan e-invoices, so Taiwanese teams do not need an overseas card
- OpenAI-compatible API, no code rewrite
- When an upstream source has a problem, the request can try another available source; if none is available you get an error
- Chinese-language support from a local team