modelsdev/claude45sonnet

modelsdev· 200K ctx

API onlytool callreasoning quant: unknown

spread (output)

1.0×

$14.95 – $15.00 · 2 providers

2 providers priced

Provider	Input	Output	Cache rd	Blended
Cortecs relay router	$2.99	$14.95	$0.326	$2.72
Helicone relay router	$3.00	$15.00	$0.300	$2.68

Cheapest (output)

Cortecs

$14.95 /M

opencode.json

{
  "provider": {
    "cortecs": {
      "npm": "@ai-sdk/openai-compatible",
      "options": {
        "baseURL": "https://api.cortecs.ai/v1"
      },
      "models": {
        "claude-4-5-sonnet": {}
      }
    }
  }
}

Set CORTECS_API_KEY in your environment. Generated — verify against the OpenCode docs.

Output $/M over time7-day preview

Median line, min–max band. Pre-2026-09 points are catalog-recorded dates from models.dev git history, not provider effective dates.

Full price history & dynamics

This is a 7-day preview. Sign in for 30 days free; the full series and export are the API subscription.

Data: models.dev (MIT), snapshot 2026-09-20. Prices are vendor-published; verify before purchase. Methodology.