token.app › Compare › GPT Chat Latest vs Grok 4.5
GPT Chat Latest vs Grok 4.5
Grok 4.5 is 3.8× cheaper per token on a blended 3:1 basis. Grok 4.5 accepts the larger context window (500K).
Head to head
Blended price uses a 3:1 input:output mix
| GPT Chat Latest | Grok 4.5 | |
|---|---|---|
| Provider | OpenAI | xAI |
| Input $/1M | $5.00 | $2.00 |
| Output $/1M | $30.00 | $6.00 |
| Blended $/1M | $11.25 | $3.00 |
| Context window | 400K | 500K |
| Max output | 128K | — |
| Released | May 2026 | Jul 2026 |
| Licence | Proprietary | Proprietary |
Choose GPT Chat Latest if…
- No clear advantage on the data we hold.
Choose Grok 4.5 if…
- Costs less per token — $3.00 vs $11.25 blended
- Larger context window (500K)
- Newer model (released Jul 2026)
FAQ
Which is better, GPT Chat Latest or Grok 4.5?
We do not hold independently-run benchmark scores covering both GPT Chat Latest and Grok 4.5, so we make no quality claim. Their pricing and specifications are compared on this page.
Is GPT Chat Latest cheaper than Grok 4.5?
Grok 4.5 is cheaper: $3.00 versus $11.25 per million tokens blended at 3:1 input:output. Input alone: $5.00 vs $2.00. Output alone: $30.00 vs $6.00.
What context windows do GPT Chat Latest and Grok 4.5 have?
GPT Chat Latest: 400,000 tokens. Grok 4.5: 500,000 tokens.
Who makes GPT Chat Latest and Grok 4.5?
GPT Chat Latest is made by OpenAI. Grok 4.5 is made by xAI.