Claude Opus 4.8 vs Grok 4.3 API Price Comparison
Prices updated: ·29 quotes
As of : At official rates, Claude Opus 4.8 is $5.0000/1M input tokens and Grok 4.3 is $1.2500 — Grok 4.3 is ~75% cheaper than Claude Opus 4.8. Via relay providers, the lowest Claude Opus 4.8 rate is $0.1379 (dddAI) and Grok 4.3 is $0.1724 (PoloAPI). Context windows: Claude Opus 4.8 1024K, Grok 4.3 1024K. Claude Opus 4.8 and Grok 4.3 support image input. 29 provider quotes tracked (Claude Opus 4.8: 21, Grok 4.3: 8), updated daily.
Claude Opus 4.8Frontier
Official
$5.0000
/ 1M tokens
Best Price
$0.1379
/ 1M tokens
21 providers · 1024K Context · 👁 Vision
Grok 4.3Frontier
Official
$1.2500
/ 1M tokens
Best Price
$0.1724
/ 1M tokens
8 providers · 1024K Context · 👁 Vision
At official prices, Grok 4.3 is ~75% cheaper. At the best relay price, Claude Opus 4.8 is ~20% cheaper.
Price Comparison
| Claude Opus 4.8 | Grok 4.3 | |
|---|---|---|
| Official input / 1M tokens | $5.0000 | $1.2500 ✓ |
| Official output / 1M tokens | $25.0000 | $2.5000 ✓ |
| Cheapest input / 1M tokens | $0.1379 ✓ | $0.1724 |
| Cheapest output / 1M tokens | $0.6897 | $0.3448 ✓ |
| providers | 21 | 8 |
| Context | 1024K | 1024K |
| Vision | ✓ | ✓ |
Claude Opus 4.8 — All Providers
Detail page →Grok 4.3 — All Providers
Detail page →Frequently Asked Questions
Which is cheaper, Claude Opus 4.8 or Grok 4.3?
At official price, Grok 4.3 is cheaper by ~75%. At the best relay price, Claude Opus 4.8 with a ~20% difference.
What context window do Claude Opus 4.8 and Grok 4.3 support?
Claude Opus 4.8 has a 1024K token context window; Grok 4.3 has 1024K tokens.
Do Claude Opus 4.8 and Grok 4.3 support image input?
Claude Opus 4.8 supports image input; Grok 4.3 supports image input.
What is the cheapest way to access Claude Opus 4.8 or Grok 4.3?
Claude Opus 4.8's lowest input price is $0.1379/1M tokens (dddAI). Grok 4.3's is $0.1724/1M tokens (PoloAPI). Relay providers typically offer lower prices with different SLA terms.
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