AI Calculator Pro

Claude Opus 4.8 vs GPT-4o

Cost and capability comparison. For a sample workload of 1,000 input and 500 output tokens across 100,000 requests/month, GPT-4o is cheaper by about $1,000.00/month.

Claude Opus 4.8GPT-4o
Provideranthropicopenai
Input / 1M$5.00$2.50
Output / 1M$25.00$10.00
Per request (sample)$0.0175$0.00750
Monthly (sample)$1,750.00$750.00
Context window1,000,000128,000
VisionYesYes
ReasoningYesNo
Arena · Overall14531355
Arena · Coding15391350
Arena · Math & reasoning14351340
Arena · Agentic / tool use1445

Intelligence scores are community Arena ratings from LMArena / arena.ai, used under CC BY 4.0. Snapshot last refreshed 28 July 2026. Scores are a relative signal, not an absolute measure of capability. A Measured score was voted on directly; an Estimated score is inherited from an identical base model (a regional/creator-prefixed hosting duplicate). See our methodology.

Compare on your own workload

Claude Opus 4.8 and GPT-4o are pre-loaded. Adjust the tokens and monthly volume to see which is cheaper for your usage.

Used unless you set active users below.

Results update automatically as you type.

Result
Cheapest: GPT-4o at $750.00/month
Workload: 1,000 in / 500 out × 100,000 requests/month
GPT-4oOpenAI$0.00750$750.00$9,000.00128,000
Claude Opus 4.8Anthropic$0.0175$1,750.00$21,000.001,000,000

FAQ

Which is cheaper, Claude Opus 4.8 or GPT-4o?

For a workload of 1,000 input and 500 output tokens over 100,000 requests/month, GPT-4o is cheaper, costing about $750.00/month versus $1,750.00/month.

What is the context window of Claude Opus 4.8 and GPT-4o?

Claude Opus 4.8 supports 1,000,000 tokens, while GPT-4o supports 128,000 tokens.

Estimates for planning only. Verify current pricing with each provider.