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Claude · canonical pair

Claude Opus 4.8 vs Claude Opus 5

Alphabetical by model id, so this URL is the one to index. Claude Opus 4.8 is anthropic/claude-opus-4-8. Claude Opus 5 is anthropic/claude-opus-5. Both are among the models the most providers list, inside the Claude group.

A

Claude Opus 4.8

$67.50

per month at the reference workload

  • Reasoning
  • Tool use
  • Vision
  • Long context

vs

B

Claude Opus 5

$67.50

per month at the reference workload

  • Reasoning
  • Tool use
  • Vision
  • Long context
100 requests a day, 2,000 input tokens and 500 output tokens, no cache hits. A light chat workload so the rate cards are comparable.
SpecClaude Opus 4.8Claude Opus 5
Monthly, reference workload$67.50$67.50
Input / 1M$5.00$5.00
Output / 1M$25.00$25.00
Cache read / 1M$0.50$0.50
Cache write / 1M$6.25$6.25
Context1,000,0001,000,000
Max output128,000128,000
ReasoningYesYes
Tool callsYesYes
VisionYesYes
Open weightsNoNo
Providers4939
Released2026-05-282026-07-24

Same workload, your numbers

Prices are USD per 1M tokens. A month is 30 days. Cache hits use the cache-read rate when the model has one; otherwise the cache field is ignored.

Claude Opus 4.8 and Claude Opus 5 cost the same at these inputs.

monthly = requests/day × 30 × (input tokens × (1 − cache hit) × input price + input tokens × cache hit × cache-read price + output tokens × output price) ÷ 1,000,000