Claude Fable 5.1

anthropic· 2026-09-01· 1M ctx

API onlytool callreasoningstructured quant: unknown

spread (output)

1.2×

$50.00 – $60.00 · 29 providers

29 providers priced

Provider	Input	Output	Cache rd	Blended
Vivgrid unknown	$10.00	$50.00	$0.500	$8.62
OpenRouter unknown	$10.00	$50.00	$0.250	$8.46
Requestyoutlier relay router	$10.00	$50.00	$0.250	$8.46
Vercel AI Gateway unknown	$10.00	$50.00	$0.250	$8.46
302.AI relay router	$10.00	$50.00	—	$13.64^*
Amazon Bedrockoutlier hyperscaler	$10.00	$50.00	$0.250	$8.46
Amazon Bedrockoutlier hyperscaler	$10.00	$50.00	$0.250	$8.46
Anthropic first party lab	$10.00	$50.00	$0.250	$8.46
Azure hyperscaler	$10.00	$50.00	$0.250	$8.46
Azure Cognitive Services unknown	$10.00	$50.00	$0.250	$8.46
Cloudflare AI Gateway unknown	$10.00	$50.00	$0.250	$8.46
CrossModel relay router	$10.00	$50.00	$0.250	$8.46
Eden AI relay router	$10.00	$50.00	$0.250	$8.46
GitHub Copilot relay router	$10.00	$50.00	$0.250	$8.46
Vertex hyperscaler	$10.00	$50.00	$0.250	$8.46
Vertex (Anthropic) unknown	$10.00	$50.00	$0.250	$8.46
Kilo Gateway relay router	$10.00	$50.00	$0.250	$8.46
DevPass (LLM Gateway) relay router	$10.00	$50.00	$0.250	$8.46
LLM Gateway relay router	$10.00	$50.00	$0.250	$8.46
LLM Gateway relay router	$10.00	$50.00	$0.250	$8.46
Merge Gateway unknown	$10.00	$50.00	$0.250	$8.46
NanoGPT relay router	$10.00	$50.00	$0.250	$8.46
Neon relay router	$10.00	$50.00	$0.250	$8.46
Ofox relay router	$10.00	$50.00	$0.250	$8.46
OpenCode Zen relay router	$10.00	$50.00	$0.250	$8.46
AIHubMixoutlier unknown	$11.00	$55.00	$0.275	$9.30
Requestyoutlier relay router	$11.00	$55.00	$0.275	$9.30
Amazon Bedrockoutlier hyperscaler	$11.00	$55.00	$0.275	$9.30
Venice AIoutlier unknown	$12.00	$60.00	$0.300	$10.15

Cheapest (output)

Vivgrid

$50.00 /M

opencode.json

{
  "provider": {
    "vivgrid": {
      "npm": "@ai-sdk/openai",
      "options": {
        "baseURL": "https://api.vivgrid.com/v1"
      },
      "models": {
        "claude-fable-5-1": {}
      }
    }
  }
}

Set VIVGRID_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.