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