GPT-5.6 Terra vs Claude Opus 4.8

A side-by-side comparison of GPT-5.6 Terra and Claude Opus 4.8 — intelligence, context, capabilities, and price.

Spec
GPT-5.6 Terra logoGPT-5.6 TerraFrom 1 credit
Claude Opus 4.8 logoClaude Opus 4.8250 credits to start
Context window1.1M1M
Streaming
Reasoning
Tool use
Web search
Vision (image input)
Document input
Video
Audio
GPT-5.6 Terra pricing
  • Input$2.875 / 1M tokens
  • Cached input$0.2875 / 1M tokens
  • Cache write$3.5938 / 1M tokens
  • Output$17.25 / 1M tokens
  • Web search (when used)$11.5 / 1,000 calls

List prices plus 15%. Higher reasoning can use more output tokens. TryAI charges a one-credit minimum and rounds each run's aggregate cost up once.

View GPT-5.6 Terradetails →
Claude Opus 4.8 pricing
  • Input$5.75 / 1M tokens
  • Cached input$0.575 / 1M tokens
  • 5m cache write$7.1875 / 1M tokens
  • 1h cache write$11.5 / 1M tokens
  • Output$28.75 / 1M tokens
  • Web search (when used)$11.5 / 1,000 searchs

List prices plus 15%. Higher reasoning can use more output tokens. TryAI charges a one-credit minimum and rounds each run's aggregate cost up once.

View Claude Opus 4.8details →

GPT-5.6 Terra vs Claude Opus 4.8: FAQ

Is GPT-5.6 Terra better than Claude Opus 4.8?
Balanced GPT-5.6 tier — matches GPT-5.5 quality (AA Intelligence Index 55) at roughly half the cost, tuned for everyday professional work. Frontier all-rounder. Leads SWE-bench Pro (69%) at AA Intelligence Index v4.1 of 56 — the value pick just below Fable 5. The best choice depends on your workload — compare context window, capabilities, and price above, or try both on TryAI.
Which is cheaper, GPT-5.6 Terra or Claude Opus 4.8?
See the pricing rows above for live per-token or per-generation costs. TryAI bills both from one pay-as-you-go balance.