GPT-5.5 vs Grok 4.3
A side-by-side comparison of GPT-5.5 and Grok 4.3 — intelligence, context, capabilities, and price.
| Spec | ||
|---|---|---|
| Context window | 1.1M | 1M |
| Streaming | ||
| Reasoning | ||
| Tool use | ||
| Web search | ||
| Vision (image input) | ||
| Document input | ||
| Video | ||
| Audio |
GPT-5.5 pricing
- Up to 272K prompt tokens · Input$5 / 1M tokens
- Up to 272K prompt tokens · Cached input$0.5 / 1M tokens
- Up to 272K prompt tokens · Output$30 / 1M tokens
- Over 272K prompt tokens · Input$10 / 1M tokens
- Over 272K prompt tokens · Cached input$1 / 1M tokens
- Over 272K prompt tokens · Output$45 / 1M tokens
- Web search (when used)$10 / 1,000 calls
Provider-equivalent rates. Higher reasoning can use more output tokens. TryAI charges a one-credit minimum and rounds each run's aggregate cost up once.
View GPT-5.5details →Grok 4.3 pricing
- Under 200K prompt tokens · Input$1.25 / 1M tokens
- Under 200K prompt tokens · Cached input$0.2 / 1M tokens
- Under 200K prompt tokens · Output$2.5 / 1M tokens
- 200K+ prompt tokens · Input$2.5 / 1M tokens
- 200K+ prompt tokens · Cached input$0.4 / 1M tokens
- 200K+ prompt tokens · Output$5 / 1M tokens
- Web search (when used)$5 / 1,000 calls
Provider-equivalent rates. Higher reasoning can use more output tokens. TryAI charges a one-credit minimum and rounds each run's aggregate cost up once.
View Grok 4.3details →GPT-5.5 vs Grok 4.3: FAQ
- Is GPT-5.5 better than Grok 4.3?
- OpenAI's previous flagship. AA Intelligence Index v4.1 of 54.8 — a strong all-round frontier model, now succeeded by the GPT-5.6 family. xAI flagship. Configurable reasoning, 1M context, and optional live web knowledge at low frontier pricing. The best choice depends on your workload — compare context window, capabilities, and price above, or try both on TryAI.
- Which is cheaper, GPT-5.5 or Grok 4.3?
- See the pricing rows above for live per-token or per-generation costs. TryAI bills both from one pay-as-you-go balance.