Anthropic
Claude Opus 4.5
Released Nov 24, 2025 · 402B tokens this week · 3 providers
Overview
Anthropic's most capable model, aimed at hard engineering, research and long-horizon agent work. It sustains focus across very long tool-using sessions and is unusually literal about following detailed specifications. The one to reach for when a wrong answer is expensive.
Providers
Reference data — not yet measured from live traffic
| PROVIDER | MAX OUT | OUTPUT /M | QUANT | |||||
|---|---|---|---|---|---|---|---|---|
AnthropicCheapest | 200K | 64K | $5.00 | $25.00 | 239ms | 62 | 99.93% | Full |
Amazon Bedrock | 200K | 64K | $5.25 | $26.25 | 1,180ms | 54 | 99.80% | Full |
Google Vertex AI | 200K | 64K | $5.25 | $26.25 | 1,120ms | 56 | 99.76% | Full |
Latency p50 reflects a provider’s API endpoint responsiveness — the round-trip to its API, not per-token inference time. These figures, with throughput and uptime, are reference data until the gateway aggregates its own traffic.
Price comparison
Blended $ per 1M tokens
Blended rate per 1M tokens, weighted one part prompt to three parts completion — roughly the shape of a chat workload. Your mix will move the number.
Call it
OpenAI-compatible — swap the base URL and go
curl https://model.cards/api/v1/chat/completions \
-H "Authorization: Bearer $MODELCARDS_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-opus-4.5",
"messages": [
{ "role": "user", "content": "Summarize the tradeoffs of speculative decoding." }
]
}'