Grok 4.5 vs GPT-5.6 Terra
A side-by-side comparison of Grok 4.5 and GPT-5.6 Terra — intelligence, context, capabilities, and price.
| Spec | ||
|---|---|---|
| Context window | 500K | 1.1M |
| Streaming | ||
| Reasoning | ||
| Tool use | ||
| Web search | ||
| Vision (image input) | ||
| Document input | ||
| Video | ||
| Audio |
Grok 4.5 pricing
- Under 200K prompt tokens · Input$2.3 / 1M tokens
- Under 200K prompt tokens · Cached input$0.345 / 1M tokens
- Under 200K prompt tokens · Output$6.9 / 1M tokens
- 200K+ prompt tokens · Input$4.6 / 1M tokens
- 200K+ prompt tokens · Cached input$0.69 / 1M tokens
- 200K+ prompt tokens · Output$13.8 / 1M tokens
- Web search (when used)$5.75 / 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 Grok 4.5details →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 →Grok 4.5 vs GPT-5.6 Terra: FAQ
- Is Grok 4.5 better than GPT-5.6 Terra?
- xAI's previous-generation coding and agentic model, trained alongside Cursor. Scores 56 on the AA Intelligence Index with 500K context, always-on reasoning, and optional web search. Balanced GPT-5.6 tier — matches GPT-5.5 quality (AA Intelligence Index 55) at roughly half the cost, tuned for everyday professional work. The best choice depends on your workload — compare context window, capabilities, and price above, or try both on TryAI.
- Which is cheaper, Grok 4.5 or GPT-5.6 Terra?
- See the pricing rows above for live per-token or per-generation costs. TryAI bills both from one pay-as-you-go balance.