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claude-sonnet-5Anthropic

from /1M in$2.00anthropic
context1M128K out
best ttft1.45sgoogle vertex ai
endpoints1412 regions
endpoints
14
regions
12
best tok/s
119
api
chat
released
June 2026
eu routing
available

capabilities 7/8

visionreasoningtoolscachingweb searchjson schemacomputer useimage gen

endpoints

14 / 12 regions
Providers serving claude-sonnet-5, with pricing and measured performance. Best value in each column is coloured.
#flags
1AnthropicGlobal1M$2.00$10.00$0.203.00s119.0no-train
2AWS BedrockGlobal1M$2.00$10.00$0.202.65s95.0-zdr
3Google Vertex AIGlobal1M$2.00$10.00$0.201.45s108.0-zdr
4AWS Bedrockap-south-11M$2.20$11.00$0.222.65s95.0-zdr
5AWS Bedrockap-southeast-21M$2.20$11.00$0.222.65s95.0-zdr
6AWS Bedrockeu-central-11M$2.20$11.00$0.222.65s95.0-zdr
7AWS Bedrockeu-north-11M$2.20$11.00$0.222.65s95.0-zdr
8AWS Bedrockeu-west-11M$2.20$11.00$0.222.65s95.0-zdr
9AWS Bedrockeu-west-21M$2.20$11.00$0.222.65s95.0-zdr
10AWS Bedrockus-east-11M$2.20$11.00$0.222.65s95.0-zdr
11AWS Bedrockus-east-21M$2.20$11.00$0.222.65s95.0-zdr
12AWS Bedrockus-west-21M$2.20$11.00$0.222.65s95.0-zdr
13Google Vertex AIeu1M$2.20$11.00$0.221.45s108.0-zdr
14Google Vertex AIus1M$2.20$11.00$0.221.45s108.0-zdr
provider price, no markupper 1M tokensblank where no qualifying sample

measured

through Nov 2
median
1.15s2.55s3.95s08-3109-2811-022.97s2.32s2.17s
hover the plot for weekly values
time to first token per provider: current value, window low and high, and change across the window
providernowlowhighchange
Google Vertex AI1.45s1.43s3.59s+18%
AWS Bedrock2.65s1.59s3.42s+87%
Anthropic3.00s1.39s3.72s+41%

median wait before the first token lands. this is the number a user feels, and it moves with provider load through the day.

Lines are steps: each sample is one week of traffic held flat, not a slide from the week before. Click a name in the key to drop it from the plot. Measured through Nov 2.

benchmarks

artificial analysis

no published benchmark scores for this model

call it

model=
claude-sonnet-5

requesty routes this id across every provider serving claude-sonnet-5, picking on price and health and failing over automatically. the id stays valid when a provider changes underneath it

Base url is https://router.requesty.ai/v1 for every id here. One key reaches the whole catalog.

quickstart

openai compatible
main.py
from openai import OpenAI client = OpenAI(    api_key="YOUR_REQUESTY_API_KEY",    base_url="https://router.requesty.ai/v1",) response = client.chat.completions.create(    model="claude-sonnet-5",    messages=[        {"role": "user", "content": "Explain quantum computing in one paragraph."},    ],) print(response.choices[0].message.content)

Change the base url, use your Requesty key, set the model to any id in the call pane. Existing OpenAI SDK code needs no other edit, and the same key reaches every other model in the catalog, so switching later is a one-parameter change. Browse all models

notes

reference

Claude Sonnet 5 is the latest model in the Sonnet family and an upgrade to Sonnet 4.6, with gains in agentic coding and professional work. It delivers top-tier intelligence at Sonnet pricing, well suited to production agents, high-volume pipelines, and everyday professional work like document drafting, spreadsheet analysis, and presentations.

questions 7

Which providers serve claude-sonnet-5?
claude-sonnet-5 is available from 3 providers through Requesty: Anthropic, AWS Bedrock, Google Vertex AI. All endpoints share one OpenAI-compatible API and one key, and Requesty fails over between them automatically.
How much does claude-sonnet-5 cost?
Pricing starts at $2.00 per million input tokens and $10.00 per million output tokens on the cheapest provider. Prices vary by provider and region; the table above shows every endpoint. Requesty charges exactly what the upstream provider charges, with no markup.
Is claude-sonnet-5 open weights?
No. claude-sonnet-5 is a proprietary model from Anthropic, served through Anthropic's own API and licensed cloud platforms.
What is the context window of claude-sonnet-5?
claude-sonnet-5 supports up to 1M tokens of context, with up to 128K output tokens per response. Some providers expose a smaller window; check the per-endpoint context column above.
Which provider is fastest for claude-sonnet-5?
In recent production traffic through Requesty, Google Vertex AI had the lowest median time to first token (1.45s) for claude-sonnet-5. Latency shifts over time, so Requesty's latency-based routing picks the fastest healthy provider per request automatically.
How do I use claude-sonnet-5 with the OpenAI SDK?
Install the OpenAI SDK, set base_url to "https://router.requesty.ai/v1", set your API key to your Requesty key, and set the model to "claude-sonnet-5" or any endpoint id from the table above. The quickstart section shows Python, JavaScript and cURL snippets.
Should I call claude-sonnet-5 by its managed id or a provider id?
Use the managed id, "claude-sonnet-5". Requesty picks which of the 3 providers serves each request based on price and health, and fails over when one degrades, so the id keeps working while the routing changes underneath it. There is also an EU-only id, "claude-sonnet-5@eu", which routes the same way but only through EU-hosted providers. Send a provider id like "anthropic/claude-sonnet-5" only when you need one specific deployment and want no failover.

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route claude-sonnet-5 through one endpoint

One key for 3 providers on this model and 600+ others. No markup on provider prices, automatic failover, caching built in. Weekly aggregates in the measured pane come from production traffic routed through Requesty, one line per provider on a shared axis. Methodology

claude-sonnet-53 providers14 endpointsfrom $2.00 /1M inctx 1Mttft 1.45supdated Nov 2