anthropic/claude-opus-4-5
Aliases: opus-4.5, claude-opus, claude-4.5
$15.00
Input / 1M
$75.00
Output / 1M
200K
Context
65 t/s
Speed
Public benchmark scores
Sourced from each provider's published numbers. Verify before quoting.
Quality index
80
MMLU
91.4
GPQA
79.6
HumanEval
92.7
MATH
96.5
SWE-bench
72.5
Arena Elo
—
Sources: anthropic-system-card, artificial-analysis
Capabilities
toolsvisionthinkingstreamingstructured_outputprompt_cache
Input modalities: text, image
Use claude-opus-4-5 via Relay
Configure the model alias in YAML, then call it from Python.
YAML
# models.yaml
version: 1
models:
opus-4.5:
target: anthropic/claude-opus-4-5
credential: $env.ANTHROPIC_API_KEYPython
from relay import Hub
async with Hub.from_yaml("models.yaml") as hub:
resp = await hub.chat(
"opus-4.5",
messages=[{"role": "user", "content": "Hello"}],
)
print(resp.text, resp.cost_usd)pip install ai5labs-relay · full docs on GitHub