Claude Sonnet 5
Vendor keyClaude Sonnet 5 is the next generation of Anthropic's Sonnet model family, offering the best combination of speed and intelligence in the current lineup. It is a drop-in upgrade for Claude Sonnet 4.6, with adaptive thinking on by default and manual extended thinking no longer accepted.
The real Anthropic model
Same weights, same API, same answers. We change only how you pay for it: one key for every maker, one bill, no separate account to open. Every figure on this page comes from Anthropic’s own page — check it.
Maker's own pagePrice
per 1M tokens
Input
Output
$2.00
$10.00
Context
1,000,000
up to 128,000 out
Modalities
Released
Jun 30, 2026
Knows up to Jan 2026
What it would cost you
1000 tokens is roughly 750 English words.
Where this model runs
Similar models
Models built for the same kind of work, at a similar price.
We do not mark up the price of tokens. It is the same price the provider charges. We earn on the top-up fee.
Use it from your code
from openai import OpenAI
# Works with the official openai package (pip install openai)
client = OpenAI(
base_url="https://api.flintbeam.com/v1",
api_key="sk-live-your-api-key"
)
response = client.chat.completions.create(
model="anthropic/claude-sonnet-5",
messages=[
{"role": "system", "content": "You are an experienced software engineer."},
{"role": "user", "content": "Describe the architecture of a distributed cache."}
],
temperature=0.7,
max_tokens=1500
)
print(response.choices[0].message.content)