Last refreshed 2026-05-22. Next refresh: weekly.
Why use Claude Sonnet 4 on Vercel AI Gateway?
Vercel AI Gateway offers Claude Sonnet 4 with pay-as-you-go pricing at $3.00/1M input tokens. Vercel AI Gateway is a unified AI proxy providing a single OpenAI-compatible API endpoint to 275+ models from 25+ providers including Anthropic, OpenAI, Google, Meta, Mistral, DeepSeek, xAI, Alibaba, Amazon, ByteDance, Cohere, MiniMax, MoonshotAI, KwaiPilot, Black Forest Labs, Recraft, Voyage AI, NVIDIA, and more.
Compare Claude Sonnet 4 across 4 providers to find the best fit for your use caseSetup recipe
Python + curlpip install openaiexport AI_GATEWAY_API_KEY=...import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["AI_GATEWAY_API_KEY"],anthropic/claude-sonnet-4Request example
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["AI_GATEWAY_API_KEY"],
base_url="https://ai-gateway.vercel.sh/v1"
)
response = client.chat.completions.create(
model="anthropic/claude-sonnet-4",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use provider model ID "anthropic/claude-sonnet-4", not the LLMReference slug "claude-sonnet-4".
- creator/model-name e.g. kwaipilot/kat-coder-pro-v2
- The examples expect AI_GATEWAY_API_KEY; rename it only if your application config maps the new variable.
Compare Claude Sonnet 4 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Anthropic | $3.00 | $15.00 |
| AWS Bedrock | $8.00 | $40.00 |
| OpenRouter | $3.00 | $15.00 |
| Vercel AI Gateway | $3.00 | $15.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $3.00 |
| Output tokens | $15.00 |
| Query | $10.00 |
Capabilities
About Claude Sonnet 4
Claude Sonnet 4 API snapshot with expanded 1M-token context. Anthropic lists claude-sonnet-4-20250514 as deprecated April 14, 2026 with Claude API retirement scheduled for June 15, 2026; use Claude Sonnet 4.6 for current integrations.
FAQ
What does Claude Sonnet 4 cost on Vercel AI Gateway?
On Vercel AI Gateway, Claude Sonnet 4 costs $3 per 1M input tokens and $15 per 1M output tokens.
What is the context window for Claude Sonnet 4 on Vercel AI Gateway?
Claude Sonnet 4 supports a 1,000,000 token context window on Vercel AI Gateway.
How does Vercel AI Gateway compare to other Claude Sonnet 4 providers?
Claude Sonnet 4 is available from 4 providers. The cheapest input pricing is $3/1M tokens from Anthropic.
What API model ID do I use for Claude Sonnet 4 on Vercel AI Gateway?
Use the model ID anthropic/claude-sonnet-4 when calling Vercel AI Gateway's API.
Who created Claude Sonnet 4?
Claude Sonnet 4 was created by Anthropic as part of the Claude 4 model family.
Is Claude Sonnet 4 open source?
Claude Sonnet 4 is not open source; the seed data lists it as proprietary.