GPT-5.4 Nano vs Grok 4
Complete pricing and performance comparison between OpenAI's GPT-5.4 Nano and xAI's Grok 4.
Quick Verdict
Cheaper
GPT-5.4 Nano
15.0x cheaper input, 12.0x cheaper output
Larger Context
Grok 4
2.0M vs 400K
Pricing Comparison
| Spec | GPT-5.4 Nano | Grok 4 | Difference |
|---|---|---|---|
| Provider | OpenAI | xAI | |
| Input / 1M tokens | $0.2 | $3 | GPT-5.4 Nano is 93% more expensive |
| Output / 1M tokens | $1.25 | $15 | GPT-5.4 Nano is 92% more expensive |
| Context Window | 400K | 2.0M | 5x difference |
| Max Output | 128K | 16K | |
| Tokenizer | o200k_base | cl100k_base |
Performance Benchmarks
| Metric | GPT-5.4 Nano | Grok 4 | Winner |
|---|---|---|---|
| Quality Index | -- | 42 | N/A |
| Output Speed | -- | 43 tok/s | N/A |
| Value (Quality/$) | -- | 13.8 | Higher = better value |
Benchmark data from Artificial Analysis. Quality Index is a composite score across reasoning, coding, and knowledge tasks.
Cost at Scale
Estimated cost at different usage levels (3:1 input-to-output token ratio, typical for chat).
| Usage | GPT-5.4 Nano | Grok 4 | Savings |
|---|---|---|---|
Single request 1K in / 300 out | $0.0006 | $0.0075 | GPT-5.4 Nano saves $0.0069 |
10 requests 10K in / 3K out | $0.0057 | $0.075 | GPT-5.4 Nano saves $0.069 |
100 requests 100K in / 30K out | $0.058 | $0.750 | GPT-5.4 Nano saves $0.693 |
1,000 requests 1M in / 300K out | $0.575 | $7.50 | GPT-5.4 Nano saves $6.92 |
10,000 requests 10M in / 3M out | $5.75 | $75.00 | GPT-5.4 Nano saves $69.25 |
1M requests/mo 1B in / 300M out | $575.00 | $7500.00 | GPT-5.4 Nano saves $6925.00 |
Pros & Cons
GPT-5.4 Nano Strengths
- +Cheaper input tokens
- +Cheaper output tokens
- +Higher max output tokens
Grok 4 Strengths
- +Larger context window (2.0M vs 400K)
When to Use Each Model
Choose GPT-5.4 Nano for
- →Budget-conscious projects where cost is the primary factor
- →Generating long-form content or detailed code
Choose Grok 4 for
- →Long documents, large codebases, or multi-turn conversations
Frequently Asked Questions
Which is cheaper, GPT-5.4 Nano or Grok 4?
For input tokens, GPT-5.4 Nano is 15.0x cheaper at $0.2/1M tokens. For output tokens, GPT-5.4 Nano is 12.0x cheaper at $1.25/1M tokens. At typical usage (1M input + 300K output), GPT-5.4 Nano costs $0.575 vs Grok 4 at $7.50.
What's the context window difference?
GPT-5.4 Nano supports 400K context (400,000 tokens), while Grok 4 supports 2.0M (2,000,000 tokens). Grok 4 can handle 5x more context in a single request.
Which model has better benchmarks?
When should I choose GPT-5.4 Nano over Grok 4?
Choose GPT-5.4 Nano when you need: Cheaper input tokens, Cheaper output tokens, Higher max output tokens. Choose Grok 4 when you need: Larger context window (2.0M vs 400K).
How much would 10,000 API requests cost?
At 1K input + 300 output tokens per request (typical chat): GPT-5.4 Nano = $5.75, Grok 4 = $75.00. At 10K input + 1K output per request (longer conversations): GPT-5.4 Nano = $32.50, Grok 4 = $450.00.