Grok and more
xAI
from $0.275 / 1M
9 models · typical $1.56 · top 94.0% GPQA, high reasoning
Developer head to head · prices updated Oct 31, 2026
xAI vs OpenAI
Grok vs GPT: every model's API price, compared
OpenAI starts cheaper ($0.055 vs $0.275 per 1M tokens); xAI's typical model costs less ($1.56 vs $3.44); OpenAI has the more accurate top model (95.8% vs 94.0% GPQA).
GPT and more
OpenAI
from $0.055 / 1M
39 models · typical $3.44 · top 95.8% GPQA, max reasoning
- Cheaper entry modelOpenAI
- More accurate top modelOpenAI
- Cheaper 85%+ GPQA modelOpenAI
- More modelsOpenAI
The matchups that matter
| xAI | OpenAI | |
|---|---|---|
| Cheapest model | Grok 4.1 Fast (Non-Reasoning) $0.275 via Google Cloud Vertex AI | gpt-oss-20b $0.055 via W&B Inference (CoreWeave) · 60.8% GPQA, medium reasoning |
| Most accurate (GPQA) | Grok 4.6 $3.00 via xAI · 94.0% GPQA, high reasoning | GPT-6 Astra $20.00 via OpenAI · 95.8% GPQA, max reasoning |
| Cheapest with 85%+ GPQA | Grok 4.3 $1.56 via xAI · 88.8% GPQA, high reasoning | GPT-6 Luna $0.20 via OpenAI · 90.5% GPQA, max reasoning |
| Typical model price | $1.56 | $3.44 |
| Models we track | 9 | 39 |
Flagships: Grok 4.6 vs GPT-6 AstraCheapest: Grok 4.1 Fast (Non-Reasoning) vs gpt-oss-20bGrok 4.7 vs GPT-6.1 Sol
Blended list price per 1M tokens (3 input : 1 output) at each model's cheapest provider; only models at least two providers sell. GPQA Diamond by Epoch AI (CC BY 4.0), best measured reasoning setting.
Every model, cheapest first
xAI
- Grok 4.1 Fast (Non-Reasoning)$0.275 via Google Cloud Vertex AI
- Grok 4.1 Fast (Reasoning)$0.275 via Google Cloud Vertex AI
- grok-code-fast-1$0.525 via Microsoft Azure AI Foundry
- Grok 4.20 (Non-Reasoning)$1.56 via xAI
- Grok 4.20 (Reasoning)$1.56 via xAI
- Grok 4.388.8% GPQA, high reasoning$1.56 via xAI
- Grok 4.694.0% GPQA, high reasoning$3.00 via xAI
- Grok 4.792.7% GPQA, xhigh reasoning$3.00 via xAI
- grok-4$6.00 via Microsoft Azure AI Foundry
OpenAI
- gpt-oss-20b60.8% GPQA, medium reasoning$0.055 via W&B Inference (CoreWeave)
- gpt-oss-120b75.8% GPQA, high reasoning$0.065 via W&B Inference (CoreWeave)
- GPT OSS Safeguard 20B$0.1025 via Amazon Bedrock
- GPT-5 Nano$0.1375 via OpenAI
- gpt-4.1-nano$0.175 via Replicate
- GPT-6 Luna90.5% GPQA, max reasoning$0.20 via OpenAI
- GPT OSS Safeguard 120B$0.2625 via Amazon Bedrock
- GPT-4o mini$0.2625 via OpenAI
- gpt-4o-mini-audio-preview$0.2625 via OpenAI
- GPT-5.6 Luna91.6% GPQA, max reasoning$0.45 via OpenAI
- GPT-5.4 nano$0.4625 via OpenAI
- GPT-5 Mini$0.6875 via OpenAI
Questions people ask
Is xAI cheaper than OpenAI?
No at the cheap end: OpenAI's cheapest model, gpt-oss-20b, starts at $0.055 per 1M tokens, against $0.275 for xAI's Grok 4.1 Fast (Non-Reasoning). The typical (median) model costs $1.56 at xAI and $3.44 at OpenAI.
Which has the more accurate model, xAI or OpenAI?
xAI's most accurate model we track, Grok 4.6, scores 94.0% GPQA, high reasoning (GPQA Diamond, Epoch AI) for $3.00 per 1M tokens; OpenAI's GPT-6 Astra scores 95.8% GPQA, max reasoning for $20.00.
How many xAI and OpenAI models can I buy through APIs?
We track 9 xAI and 39 OpenAI models that at least two providers sell, with prices from each provider's pricing page.