API cost decision in 10 seconds
Grok 4.3 vs 🔥DeepSeek V4 Pro
Pick DeepSeek V4 Pro when budget and context both matter.
Pricing data updated:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick DeepSeek V4 Pro when budget and context both matter.
On the standard 1M input plus 500K output workload, DeepSeek V4 Pro is estimated at $0.87 vs $2.5 for Grok 4.3, saving $1.63 (65.2% lower).
Cost-first pickDeepSeek V4 Pro
Context-first pickDeepSeek V4 Pro
Sample savings$1.6365.2%
10x traffic gap$16.3
DeepSeek V4 Pro is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $16.3. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
DeepSeek V4 Pro stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Grok 4.3 | DeepSeek V4 Pro |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | DeepSeek V4 Pro | $7.5 | $2.61 |
| Balanced workload | 1M input + 1M output | DeepSeek V4 Pro | $3.75 | $1.3 |
| Output-heavy chatbot | 1M input + 5M output | DeepSeek V4 Pro | $13.75 | $4.78 |
Estimate your workload cost
Your Workload Cost
This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.
Quick Decision
DeepSeek V4 Pro has the lower input price, DeepSeek V4 Pro has the lower output price, and DeepSeek V4 Pro offers the larger context window.
For a 1M input token plus 500K output token workload, the estimated API cost is $2.5 for Grok 4.3 and $0.87 for DeepSeek V4 Pro.
Choose Grok 4.3 when its provider, model quality, latency, or availability is more important than the numeric price/context winner.
Choose DeepSeek V4 Pro when you care most about lower input-token price, lower output-token price, and larger context window.
| Feature | Grok 4.3 (xAI) | 🔥DeepSeek V4 Pro (DeepSeek) |
|---|---|---|
| Input Price prompt tokens per 1M | $1.25 | $0.43 |
| Completion Price per 1M tokens | $2.5 | $0.87 |
| Sample Workload Cost 1M input + 500K output | $2.5 | $0.87 |
| Context Window | 1M | 1.05M |
| Release Date | 2026-04-30 | 2026-04-24 |
| Popularity | #6 |
Grok 4.3 is a reasoning model from xAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual...
DeepSeek V4 Pro is a large-scale Mixture-of-Experts model from DeepSeek with 1.6T total parameters and 49B activated parameters, supporting a 1M-token context window. It is designed for advanced reasoning, coding,...
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | DeepSeek V4 Pro | On the standard 1M input plus 500K output workload, DeepSeek V4 Pro is estimated at $0.87 vs $2.5 for Grok 4.3, saving $1.63 (65.2% lower). |
| High-volume input processing | DeepSeek V4 Pro | Lower prompt-token price matters most when prompts or retrieved passages dominate the bill. |
| Long responses and chatbots | DeepSeek V4 Pro | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | DeepSeek V4 Pro | A larger context window leaves more room for retrieved passages and source files. |