Last refreshed 2026-05-28. Next refresh: weekly.
Why use Claude Opus 4.8 on Vercel AI Gateway?
Vercel AI Gateway offers Claude Opus 4.8 with pay-as-you-go pricing at $5.00/1M 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 Opus 4.8 across 7 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-opus-4.8Request 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-opus-4.8",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use provider model ID "anthropic/claude-opus-4.8", not the LLMReference slug "claude-opus-4-8".
- 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 Opus 4.8 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Anthropic | $5.00 | $25.00 |
| AWS Bedrock | $5.00 | $25.00 |
| GCP Vertex AI | $5.00 | $25.00 |
| Microsoft Foundry | $5.00 | $25.00 |
| OpenRouter | $5.00 | $25.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $5.00 |
| Output tokens | $25.00 |
| Query | $10.00 |
Capabilities
About Claude Opus 4.8
Claude Opus 4.8 is Anthropic's most capable generally-available model for complex reasoning, long-horizon agentic coding, and high-autonomy work. It improves on Opus 4.7 across agentic coding (SWE-bench Pro 69.2% vs 64.3%), agentic terminal coding (Terminal-Bench 2.1 74.6% vs 66.1%), multidisciplinary reasoning (HLE 57.9% with tools vs 54.7%), and agentic computer use (OSWorld-Verified 83.4%). Features a 1M-token context window (200k on Microsoft Foundry), 128k max output tokens, adaptive thinking with effort control defaulting to high, computer use, and a fast mode at 2.5× speed ($10/$50 per MTok). Approximately 4× less likely than Opus 4.7 to leave undetected code flaws. Deprecated Claude Opus 4 and Claude Sonnet 4 should migrate to Claude Opus 4.8.
FAQ
What does Claude Opus 4.8 cost on Vercel AI Gateway?
On Vercel AI Gateway, Claude Opus 4.8 costs $5 per 1M input tokens and $25 per 1M output tokens.
What is the context window for Claude Opus 4.8 on Vercel AI Gateway?
Claude Opus 4.8 supports a 1m token context window on Vercel AI Gateway.
How does Vercel AI Gateway compare to other Claude Opus 4.8 providers?
Claude Opus 4.8 is available from 7 providers. The cheapest input pricing is $5.00/1M tokens from Anthropic.
What API model ID do I use for Claude Opus 4.8 on Vercel AI Gateway?
Use the model ID anthropic/claude-opus-4.8 when calling Vercel AI Gateway's API.
Who created Claude Opus 4.8?
Claude Opus 4.8 was created by Anthropic as part of the Claude 4.8 model family.
Is Claude Opus 4.8 open source?
Claude Opus 4.8 is not open source; the seed data lists it as proprietary.