modelsdev/gpt56

modelsdev· 372K ctx

API onlytool callreasoningstructured quant: unknown

spread (output)

1.7×

$12.00 – $20.00 · 2 providers

2 providers priced

Provider	Input	Output	Cache rd	Blended
Xpersona relay router	$1.50	$12.00	$0.150	$1.60
OpenAItiered first party lab	$4.00	$20.00	$0.400	$3.57

Cheapest (output)

Xpersona

$12.00 /M

opencode.json

{
  "provider": {
    "xpersona": {
      "npm": "@ai-sdk/openai-compatible",
      "options": {
        "baseURL": "https://www.xpersona.co/v1"
      },
      "models": {
        "gpt-5.6": {}
      }
    }
  }
}

Set XPERSONA_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.