babbage-002 vs Grok 4.1 Fast
Detailed pricing comparison and cost analysis.
Updated September 2026
Cost Simulator
| Feature | babbage-002 | Grok 4.1 Fast |
|---|---|---|
| Provider | OpenAI | xAI |
| Input Price (1M) | $0.40 | $0.20 |
| Output Price (1M) | $0.40 | $0.50 |
| Context Window | 16,384 | 2,000,000 |
Verdict
babbage-002 costs $0.40 per 1M input tokens and $0.40 per 1M output tokens. Grok 4.1 Fast costs $0.20 per 1M input tokens and $0.50 per 1M output tokens. Grok 4.1 Fast is 50% cheaper on input tokens than babbage-002. For output tokens, babbage-002 is the more affordable option at $0.40/1M vs $0.50.
On context window, Grok 4.1 Fast supports 2,000,000 tokens — meaning it can fit more conversation history, documents, or code in a single request. This matters for RAG pipelines, long document analysis, and agentic workflows where context builds up over many turns.
When to choose babbage-002
- ✓ Your workload is output-heavy — babbage-002 generates text cheaper
- ✓ You are already integrated with OpenAI
When to choose Grok 4.1 Fast
- ✓ You need the lowest input token cost ($ 0.20/1M)
- ✓ You need a larger context window (2,000,000 tokens)
- ✓ You are already integrated with xAI
Use the calculator above to simulate your specific workload and find the exact break-even point. For most applications, the cheapest model is the one that minimises your total monthly bill given your input-to-output token ratio.
Frequently Asked Questions
Is babbage-002 cheaper than Grok 4.1 Fast? ▼
Grok 4.1 Fast is cheaper on input tokens at $0.20/1M vs $0.40/1M for babbage-002 — a 50% saving.
What is the context window of babbage-002 vs Grok 4.1 Fast? ▼
babbage-002 has a 16,384-token context window. Grok 4.1 Fast has a 2,000,000-token context window. Grok 4.1 Fast supports the larger context, suitable for longer documents and agentic workflows.
Which model is better: babbage-002 or Grok 4.1 Fast? ▼
The best choice depends on your use case. For cost efficiency on input tokens, Grok 4.1 Fast is the cheaper option. For maximum context length, Grok 4.1 Fast supports 2,000,000 tokens. Use the comparison table above to find the right fit for your workload.