GPT-5.4 Mini vs Grok 4.3
List-price comparison · GPT-5.4 Mini details · Grok 4.3 details
For a typical workload (100,000 requests / mo), Grok 4.3 costs 7% less — $250.00/mo vs $270.00/mo.
| GPT-5.4 Mini | Grok 4.3 | |
|---|---|---|
| Input / 1M tokens | $0.750 | $1.25 |
| Output / 1M tokens | $4.50 | $2.50 |
| Typical request (1,200 in + 400 out) | $0.0027 | $0.0025 |
| Context window | 400k tokens | 1M tokens |
| Max output | 128k tokens | — |
| Tier | Balanced | Flagship |
| Provider | OpenAI | xAI |
Projected monthly cost
Rows open both models in the calculator — adjust volume and token counts there.
GPT-5.4 Mini
Good default for everyday chat, summarization, and lightweight agent steps where GPT-5.4-level reasoning isn't required.
Quality gap widens on long, multi-hop reasoning tasks — needs careful prompt design to avoid silent failures on edge cases.
Grok 4.3
Strong real-time knowledge via X/Twitter integration and competitive general reasoning at a lower price than other flagship models.
Smaller third-party ecosystem and fewer enterprise compliance certifications than OpenAI/Anthropic/Google offerings.
More comparisons
Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.