Claude Opus 4.5

anthropic/claude-opus-4.5
by Anthropic · file+image+text in · text out · 200K ctx · 2025-11-24

Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering…

Endpoints:/v1/chat/completions/v1/messages
INPUT$5.00/ 1M tokens
OUTPUT$25.00/ 1M tokens
p50 TTFT1.64 s7d
p95 TTFT2.65 s7d
TRAFFIC866.6Ktokens / 7d
▶ Try in playground</> Use via API
Code samples
from openai import OpenAI

client = OpenAI(
    base_url="https://orcarouter.ai/v1",
    api_key="$ORCAROUTER_API_KEY",
)

response = client.chat.completions.create(
    model="anthropic/claude-opus-4.5",
    messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)
Pricing
Input / 1M tokens$5.00
Output / 1M tokens$25.00
Cache read / 1M$0.500
Cache write / 1M$6.25
CurrencyUSD
Performancelast 7 days
TTFT p50
1.64 s
Output speed
43.2 tok/s
TTFT p95
2.65 s
Error rate
0.67%
Public benchmarksLast evaluated 2025-11-24
AA Coding
42.9
AA Intelligence
43.1
AA Math
62.7
AIME 2025
62.7
GPQA Diamond
81.0
Humanity's Last Exam
12.9
IFBench
43.0
LiveCodeBench
73.8
Long-Context Recall
65.3
MMLU-Pro
88.9
SciCode
47.0
TerminalBench Hard
40.9
τ²-Bench
86.3
Source: artificialanalysis.ai
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FAQ
How much does Anthropic: Claude Opus 4.5 cost on OrcaRouter?
Anthropic: Claude Opus 4.5 is priced at $5.00 per 1M input tokens and $25.00 per 1M output tokens via OrcaRouter. Pricing is pulled live from the routing layer.
What is Anthropic: Claude Opus 4.5's context window?
Anthropic: Claude Opus 4.5 supports a context window of 200K tokens. Use long-context features (RAG, summarisation) up to that limit.
How do I call Anthropic: Claude Opus 4.5 via the OpenAI SDK?
Set OpenAI base_url to https://orcarouter.ai/v1, supply your OrcaRouter API key, and pass model="anthropic/claude-opus-4.5" in the chat.completions.create call.
Does OrcaRouter rate-limit Anthropic: Claude Opus 4.5?
Per-model rate limits follow your OrcaRouter plan. Free tiers ship with conservative caps; paid tiers lift them. Check /pricing for current quotas.
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