Comparison
GPT-5.5 vs Grok 4.3
Per input token, Grok 4.3 runs 75% cheaper than GPT-5.5. On generated (output) tokens, GPT-5.5 costs 92% more than Grok 4.3. GPT-5.5 has the larger context window than Grok 4.3.
Worked cost examples
Estimated monthly cost on three common usage shapes
| Workload | GPT-5.5 | Grok 4.3 |
|---|---|---|
Chatbot 800 input / 200 output tokens per request, 100,000 requests/month | $1,000 | $150.00cheaper |
RAG pipeline 6,000 input / 700 output tokens per request, 30,000 requests/month | $1,530 | $277.50cheaper |
Batch summarization 20,000 input / 1,500 output tokens per request, 5,000 requests/month | $725.00 | $143.75cheaper |
GPT-5.5 vs Grok 4.3 FAQ
- Is GPT-5.5 cheaper than Grok 4.3?
- GPT-5.5 costs $5.00 per 1M input tokens versus $1.25 for Grok 4.3 — Grok 4.3 is 300% cheaper per input token.
- Which is cheaper for output tokens, GPT-5.5 or Grok 4.3?
- GPT-5.5 charges $30.00 per 1M output tokens; Grok 4.3 charges $2.50 per 1M output tokens.
- Which has the larger context window, GPT-5.5 or Grok 4.3?
- GPT-5.5 does, with a 1,050,000-token context window.
- Do GPT-5.5 and Grok 4.3 offer cache pricing?
- GPT-5.5 discounts cached input to $0.50 per 1M tokens. Grok 4.3 discounts cached input to $0.20 per 1M tokens.
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