Anthropic
Claude Sonnet 4.5
Released Sep 29, 2025 · 884B tokens this week · 3 providers
Overview
The balanced Claude: near-frontier coding and agent quality at a mid-tier price. It is the default choice for production assistants that run all day and need consistent, well-formed tool calls. Long context and steady instruction-following make it a safe general upgrade.
Providers
Reference data — not yet measured from live traffic
| PROVIDER | MAX OUT | OUTPUT /M | QUANT | |||||
|---|---|---|---|---|---|---|---|---|
AnthropicCheapest | 200K | 64K | $3.00 | $15.00 | 239ms | 84 | 99.95% | Full |
Amazon Bedrock | 200K | 64K | $3.12 | $15.60 | 880ms | 72 | 99.86% | Full |
Google Vertex AI | 200K | 64K | $3.12 | $15.60 | 840ms | 74 | 99.81% | 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-sonnet-4.5",
"messages": [
{ "role": "user", "content": "Summarize the tradeoffs of speculative decoding." }
]
}'