OpenAI: GPT-5.6 Sol vs SpaceXAI: Grok 4.6
openai vs x-ai
On price, SpaceXAI: Grok 4.6 is cheaper (blended cost is about 0.38× that of OpenAI: GPT-5.6 Sol).
On capability, OpenAI: GPT-5.6 Sol has the higher intelligence index (47) — better for complex reasoning.
Verdict: pick SpaceXAI: Grok 4.6 on a budget, or OpenAI: GPT-5.6 Sol for output quality. Full details below.
Side-by-Side Specs
| Metric | OpenAI: GPT-5.6 Sol | SpaceXAI: Grok 4.6 |
|---|---|---|
| Input /1M | $4.00 | $2.00 |
| Output /1M | $20.00 | $6.00 |
| Blended (3:1) | $8.00 | $3.00 |
| Context | 1.1M | 500K |
| Intelligence | 47 | 44 |
| Coding | 77 | 77 |
| Math | — | — |
| Speed | 106 tok/s | 64 tok/s |
| CPS Grade | A | A |
FAQ
Which is cheaper, OpenAI: GPT-5.6 Sol or SpaceXAI: Grok 4.6?
On price, SpaceXAI: Grok 4.6 is cheaper (blended cost is about 0.38× that of OpenAI: GPT-5.6 Sol). OpenAI: GPT-5.6 Sol: $4 in / $20 out; SpaceXAI: Grok 4.6: $2 in / $6 out (per 1M tokens).
Which is smarter, OpenAI: GPT-5.6 Sol or SpaceXAI: Grok 4.6?
On capability, OpenAI: GPT-5.6 Sol has the higher intelligence index (47) — better for complex reasoning. Coding index: OpenAI: GPT-5.6 Sol 77 vs SpaceXAI: Grok 4.6 77.
Which one should I choose?
Verdict: pick SpaceXAI: Grok 4.6 on a budget, or OpenAI: GPT-5.6 Sol for output quality. Full details below.