GPT-5.5 vs Claude Opus 4.8 API Price Comparison
Prices updated: ·61 quotes
As of : At official rates, GPT-5.5 is $5.0000/1M input tokens and Claude Opus 4.8 is $5.0000 — Claude Opus 4.8 is ~0% cheaper than GPT-5.5. Via relay providers, the lowest GPT-5.5 rate is $0.0138 (ShannonAPI) and Claude Opus 4.8 is $0.0690 (Zhiyuan AI). Context windows: GPT-5.5 1050K, Claude Opus 4.8 1024K. GPT-5.5 and Claude Opus 4.8 support image input. 61 provider quotes tracked (GPT-5.5: 25, Claude Opus 4.8: 36), updated daily.
GPT-5.5Frontier
Official
$5.0000
/ 1M tokens
Best Price
$0.0138
/ 1M tokens
25 providers · 1050K Context · 👁 Vision
Claude Opus 4.8Frontier
Official
$5.0000
/ 1M tokens
Best Price
$0.0690
/ 1M tokens
36 providers · 1024K Context · 👁 Vision
At the best relay price, GPT-5.5 is ~80% cheaper.
Price Comparison
| GPT-5.5 | Claude Opus 4.8 | |
|---|---|---|
| Official input / 1M tokens | $5.0000 | $5.0000 |
| Official output / 1M tokens | $30.0000 | $25.0000 ✓ |
| Cheapest input / 1M tokens | $0.0138 ✓ | $0.0690 |
| Cheapest output / 1M tokens | $0.0828 ✓ | $0.3448 |
| providers | 25 | 36 |
| Context | 1050K | 1024K |
| Vision | ✓ | ✓ |
GPT-5.5 — All Providers
Detail page →Claude Opus 4.8 — All Providers
Detail page →Frequently Asked Questions
Which is cheaper, GPT-5.5 or Claude Opus 4.8?
Official pricing for these two models cannot be directly compared. See the live provider tables below.
What context window do GPT-5.5 and Claude Opus 4.8 support?
GPT-5.5 has a 1050K token context window; Claude Opus 4.8 has 1024K tokens.
Do GPT-5.5 and Claude Opus 4.8 support image input?
GPT-5.5 supports image input; Claude Opus 4.8 supports image input.
What is the cheapest way to access GPT-5.5 or Claude Opus 4.8?
GPT-5.5's lowest input price is $0.0138/1M tokens (ShannonAPI). Claude Opus 4.8's is $0.0690/1M tokens (Zhiyuan AI). Relay providers typically offer lower prices with different SLA terms.
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