GPT-5 VS Grok 3
OpenAI · xAI · AI Models · Updated Jun 1, 2026
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GPT-5OpenAI · GPT-5 is 58.3% cheaper
WINNERSide-by-Side Breakdown
| Feature | GPT-5 | Grok 3 | Winner |
|---|---|---|---|
| Input Price | $1.25/1M tkns | $3.00/1M tkns | ✓ GPT-5 |
| Output Price | $10.00/1M tkns | $15.00/1M tkns | ✓ GPT-5 |
| Provider | OpenAI | xAI | — |
| Category | ai-model | ai-model | — |
| context window | 400000 | 131072 | |
| vision | true | true | |
| modalities | text+vision | — | |
| Overall Winner | 🏆 | GPT-5 |
GPT-5 vs Grok 3: Quick Summary
GPT-5 is the more affordable choice. GPT-5 costs $1.25/1M tkns vs Grok 3 at $3.00/1M tkns (Input Price). GPT-5 is 58.3% cheaper. Pricing verified as of Jun 1, 2026 — always confirm on the provider's official pricing page before committing.