Grok 4.3 is Grok's balanced performance model, priced at $1.25/MTok input and $2.50/MTok output with a 1,000K context window. xAI publishes no release date for this model; dated to the March 4.20-generation launch whose pricing and 1M context window it shares. Priced from the live models table, which is what matters for costing traffic.
Input $/MTok
$1.25
Output $/MTok
$2.50
Context window
1,000K
Cache read discount
84% off
| Rate | Input $/MTok | Output $/MTok |
|---|---|---|
| Standard | $1.25 | $2.50 |
| Cached read (84% off input) | $0.20 | - |
| Cached write (no surcharge) | $1.25 | - |
| Batch (50% off) | $0.63 | $1.25 |
| Long context (≥200K tokens) | $2.50 | $5.00 |
All rates in USD per million tokens. Prices verified against provider documentation.
Confidence scores (0-100) and cross-provider rank for each task type. Rank 1 is best across all 20 models.
Not benchmarked. The third-party benchmark source used for confidence scores does not cover Grok models yet. Scores will appear here once independent benchmarks are published.
Estimated cost per API call using default token counts for each workload.
| Use case | Input tokens | Output tokens | Cost / call |
|---|---|---|---|
| Code Generation | 2,000 | 4,000 | $0.0125 |
| Unit Test Generation | 3,000 | 5,000 | $0.0163 |
| SQL Generation | 1,500 | 1,000 | $0.004375 |
| API Generation | 3,000 | 6,000 | $0.0187 |
| Code Refactoring | 4,000 | 4,000 | $0.0150 |
| Code Review | 5,000 | 2,000 | $0.0112 |
| PR Review | 8,000 | 3,000 | $0.0175 |
| Security Review | 6,000 | 2,500 | $0.0138 |
| Bug Detection | 5,000 | 2,000 | $0.0112 |
| Document Summarization | 10,000 | 1,000 | $0.0150 |
| PDF Summarization | 15,000 | 1,500 | $0.0225 |
| Meeting Notes | 8,000 | 2,000 | $0.0150 |
Projected monthly spend at different call volumes, using code generation as a representative workload (2,000 input / 4,000 output tokens per call).
| Calls / month | Without caching | With caching (84% read discount) |
|---|---|---|
| 1K | $12.5 | $11.03 |
| 10K | $125 | $110.3 |
| 100K | $1,250 | $1,103 |
| 500K | $6,250 | $5,515 |
| 1M | $12,500 | $11,030 |
Caching estimate assumes 70% of input tokens are cache reads. Your actual cache hit rate will depend on prompt structure and reuse.
Same-tier models from other providers, sorted by input price.
| Model | Provider | Input $/MTok | Output $/MTok | Input savings |
|---|---|---|---|---|
| Claude Sonnet 5 | Claude | $2.00 | $10.00 | 60% more |
| GPT 5.6 Terra | GPT | $2.00 | $12.00 | 60% more |
| Gemini 3.1 Pro | Gemini | $2.00 | $12.00 | 60% more |
| GPT 5.4 | GPT | $2.50 | $15.00 | 100% more |
| Claude Sonnet 4.6 | Claude | $3.00 | $15.00 | 140% more |
Input launched
$1.25/MTok at launch
See exactly how much you spend on Grok 4.3 and where you can save. Two-line wrapper install, no API keys shared.