GPT-5 Pro

openai· 2025-10-06· 400K ctx

API onlyreasoning quant: unknown

spread (output)

1.1×

$108 – $120 · 16 providers

16 providers priced

Provider	Input	Output	Cache rd	Blended
Jiekou.AI relay router	$13.50	$108	—	$22.10^*
Poe relay router	$14.00	$110	—	$22.74^*
Azure Cognitive Services unknown	$15.00	$120	—	$24.55^*
Eden AI relay router	$15.00	$120	—	$24.55^*
Helicone relay router	$15.00	$120	—	$24.55^*
Impossibl relay router	$15.00	$120	—	$24.55^*
Kilo Gateway relay router	$15.00	$120	—	$24.55^*
DevPass (LLM Gateway) relay router	$15.00	$120	—	$24.55^*
LLM Gateway relay router	$15.00	$120	—	$24.55^*
NanoGPT relay router	$15.00	$120	$1.50	$15.96
OpenAI first party lab	$15.00	$120	—	$24.55^*
OpenRouter unknown	$15.00	$120	—	$24.55^*
OrcaRouter relay router	$15.00	$120	—	$24.55^*
302.AI relay router	$15.00	$120	—	$24.55^*
Vercel AI Gateway unknown	$15.00	$120	—	$24.55^*
Azure hyperscaler	$15.00	$120	—	$24.55^*

Cheapest (output)

Jiekou.AI

$108 /M

opencode.json

{
  "provider": {
    "jiekou": {
      "npm": "@ai-sdk/openai-compatible",
      "options": {
        "baseURL": "https://api.jiekou.ai/openai"
      },
      "models": {
        "gpt-5-pro": {}
      }
    }
  }
}

Set JIEKOU_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.