Grok 4.7 vs Mercury 3
Detailed technical comparison between Grok 4.7 (xAI) and Mercury 3 (Inception AI). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.
Comparison Snapshot
Mercury 3
1,000,000 tokensTie
Equal CapabilityTie
Equal SpeedMercury 3
$0.10 / MTokGrok 4.7
Grok 4.7 is SpaceXAI's flagship model for coding, agentic tasks, and knowledge work, succeeding Grok 4.6. It is particularly strong at long-running software engineering tasks, verifying its own work, and...
Mercury 3
Mercury 3 is a diffusion-based language model from Inception, and the lab's most capable model to date. It is suited for agentic workflows and real-time applications where latency compounds, such...
Technical Specifications
🏆 = Superior Spec| Specification | Grok 4.7 | Mercury 3 |
|---|---|---|
| Provider | xAI | Inception AI |
| Context Window | 500,000 tokens | 1,000,000 tokens🏆 |
| Agent Suitability | Not yet benchmarked | Not yet benchmarked |
| Time to First Token (TTFT) | No public TTFT data | No public TTFT data |
| Deployment Model | managed api | managed api |
| Production Stability | Not verified | Not verified |
| API Available | Yes | Yes |
| Released Date | 2026-09-21 | 2026-10-16 |
API Pricing Comparison
Input Price per Million Tokens
Grok 4.7
$2.00
Mercury 3
$0.10
Output Price per Million Tokens
Grok 4.7
$6.00
Mercury 3
$0.35
💡 Cost Ratio: Mercury 3 is 20.0x cheaper per input token than Grok 4.7.
Want to test both models live?
Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.
Benchmark Performance Metrics
Standardized Scores (0–100%)Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.
Grok 4.7 Quirks & Gotchas
No developer gotchas reported.
Mercury 3 Quirks & Gotchas
No developer gotchas reported.
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