Claude Sonnet 5

anthropic/claude-sonnet-5
Also accepted:claude-sonnet-5anthropic/claude-sonnet-5

Anthropic's Claude Sonnet 5 is a cost-efficient agentic model with strong coding, tool-use, and reasoning at the balanced Sonnet performance-cost tier, with a 1M-token context window.

Upstream Providers
ZDR only
anthropic-byok
In$3.00Out$15.00
CachedNo ZDRTools
openrouter-byok
In$3.00Out$15.00
CachedNo ZDRTools
API Details
Uptime & Health
No uptime data yet

These providers haven't been health-probed for this model yet. The router still routes around upstreams that fail live requests — uptime fills in once probe history accrues.

Code samples
curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-sonnet-5",
    "messages": [
      {"role": "user", "content": "Say hi in 3 words."}
    ]
  }'
No API key yetSet ANYROUTER_API_KEY Dashboard → Keys
Request example
{
  "model": "anthropic/claude-sonnet-5",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}

Change sort, ZDR, effort, or pin a provider to add routing params.