baidu/ernie-4.5-21b-a3b-thinking

baidu· 131K ctx· apache-2.0

open weightsreasoning quant: unknown

spread (output)

1.0×

$0.280 – $0.280 · 2 providers

2 providers priced

Provider	Input	Output	Cache rd	Blended
Helicone relay router	$0.070	$0.280	—	$0.089^*
NovitaAI relay router	$0.070	$0.280	—	$0.089^*

Cheapest (output)

Helicone

$0.280 /M

opencode.json

{
  "provider": {
    "helicone": {
      "npm": "@ai-sdk/openai-compatible",
      "options": {
        "baseURL": "https://ai-gateway.helicone.ai/v1"
      },
      "models": {
        "ernie-4.5-21b-a3b-thinking": {}
      }
    }
  }
}

Set HELICONE_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.