Grok 2 is 9% cheaper than GPT-4o (Omni) on blended 3:1 token pricing. Grok 2 costs $2.00/1M in and $10.00/1M out, while GPT-4o (Omni) costs $2.50/1M in and $10.00/1M out.
Grok 2 vs GPT-4o (Omni)
Compare verified input/output token rates, prompt caching discounts, latency tiers, and context limits between xAI and OpenAI.
| Metric / Feature | Grok 2 (xAI) | GPT-4o (Omni) (OpenAI) |
|---|---|---|
| Input Price ($ / 1M Tokens) | $2.00 | $2.50 |
| Output Price ($ / 1M Tokens) | $10.00 | $10.00 |
| Prompt Caching Input Rate | Not Available | $1.250/1M |
| Blended 3:1 Rate (Production) | $4.000 / 1M | $4.375 / 1M |
| Max Context Window | 131k | 128k |
| Multimodal Vision | ✅ Supported | ✅ Supported |
| MMLU Benchmark | 87.5% | 88.7% |
| Throughput & Latency | Fast (~45 t/s) | Fast (~45 t/s) |
| Best For | Real-time news synthesis, coding, uncensored creative reasoning | Complex enterprise workflows, high-precision coding, multi-modal analysis |
When to Choose Grok 2
Choose Grok 2 if your workload requires real-time news synthesis, coding, uncensored creative reasoning. Ideal for teams needing xAI's infrastructure and ecosystem tooling.
When to Choose GPT-4o (Omni)
Choose GPT-4o (Omni) if your primary objective is complex enterprise workflows, high-precision coding, multi-modal analysis. Ideal for scaling high-throughput pipelines with OpenAI.
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