Claude Opus 4.8 vs GPT-5
Cost and capability comparison. For a sample workload of 1,000 input and 500 output tokens across 100,000 requests/month, GPT-5 is cheaper by about $1,125.00/month.
| Claude Opus 4.8 | GPT-5 | |
|---|---|---|
| Provider | anthropic | openai |
| Input / 1M | $5.00 | $1.25 |
| Output / 1M | $25.00 | $10.00 |
| Per request (sample) | $0.0175 | $0.00625 |
| Monthly (sample) | $1,750.00 | $625.00 |
| Context window | 1,000,000 | 128,000 |
| Vision | Yes | Yes |
| Reasoning | Yes | Yes |
FAQ
Which is cheaper, Claude Opus 4.8 or GPT-5?
For a workload of 1,000 input and 500 output tokens over 100,000 requests/month, GPT-5 is cheaper, costing about $625.00/month versus $1,750.00/month.
What is the context window of Claude Opus 4.8 and GPT-5?
Claude Opus 4.8 supports 1,000,000 tokens, while GPT-5 supports 128,000 tokens.
Estimates for planning only. Verify current pricing with each provider.