token.app › Compare › GPT-5.6 Terra Pro vs Grok 4.6
GPT-5.6 Terra Pro vs Grok 4.6
Grok 4.6 is 1.5× cheaper per token on a blended 3:1 basis. GPT-5.6 Terra Pro accepts the larger context window (1.1M).
Head to head
Blended price uses a 3:1 input:output mix
| GPT-5.6 Terra Pro | Grok 4.6 | |
|---|---|---|
| Provider | OpenAI | SpaceXAI |
| Input $/1M | $2.00 | $2.00 |
| Output $/1M | $12.00 | $6.00 |
| Blended $/1M | $4.50 | $3.00 |
| Context window | 1.1M | 500K |
| Max output | 128K | 450K |
| Released | Jul 2026 | Aug 2026 |
| Licence | Proprietary | Proprietary |
Choose GPT-5.6 Terra Pro if…
- Larger context window (1.1M)
Choose Grok 4.6 if…
- Costs less per token — $3.00 vs $4.50 blended
- Newer model (released Aug 2026)
FAQ
Which is better, GPT-5.6 Terra Pro or Grok 4.6?
We do not hold independently-run benchmark scores covering both GPT-5.6 Terra Pro and Grok 4.6, so we make no quality claim. Their pricing and specifications are compared on this page.
Is GPT-5.6 Terra Pro cheaper than Grok 4.6?
Grok 4.6 is cheaper: $3.00 versus $4.50 per million tokens blended at 3:1 input:output. Input alone: $2.00 vs $2.00. Output alone: $12.00 vs $6.00.
What context windows do GPT-5.6 Terra Pro and Grok 4.6 have?
GPT-5.6 Terra Pro: 1,050,000 tokens. Grok 4.6: 500,000 tokens.
Who makes GPT-5.6 Terra Pro and Grok 4.6?
GPT-5.6 Terra Pro is made by OpenAI. Grok 4.6 is made by SpaceXAI.
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