| Signal | Grok 3 Beta | Delta | Mercury |
|---|---|---|---|
Capabilities | 67 | +17 | |
Pricing | 15 | +14 | |
Context window size | 81 | +0 | |
Recency | 68 | -14 | |
Output Capacity | 20 | -55 | |
Benchmarks | 0 | -54 | |
| Overall Result | 3 wins | of 6 | 3 wins |
6
days higher
5
days
19
days higher
xAI
Inception
Mercury saves you $987.50/month
That's $11850.00/year compared to Grok 3 Beta at your current usage level of 100K calls/month.
| Metric | Grok 3 Beta | Mercury | Winner |
|---|---|---|---|
| Overall Score | 63 | 63 | -- |
| Rank | #209 | #208 | Mercury |
| Quality Rank | #209 | #208 | Mercury |
| Adoption Rank | #209 | #208 | Mercury |
| Parameters | -- | -- | -- |
| Context Window | 131K | 128K | Grok 3 Beta |
| Pricing | $3.00/$15.00/M | $0.25/$0.75/M | -- |
| Signal Scores | |||
| Capabilities | 67 | 50 | Grok 3 Beta |
| Pricing | 15 | 1 | Grok 3 Beta |
| Context window size | 81 | 81 | Grok 3 Beta |
| Recency | 68 | 82 | Mercury |
| Output Capacity | 20 | 75 | Mercury |
| Benchmarks | -- | 55 | Mercury |
Our composite score (0–100) combines six weighted signals: benchmark performance (25%), pricing efficiency (25%), context window size (15%), model recency (15%), output capacity (10%), and capability versatility (10%). Here's what the scores mean for these two models:
Scores 63/100 (rank #209), placing it in the top 28% of all 290 models tracked.
Scores 63/100 (rank #208), placing it in the top 29% of all 290 models tracked.
With only a 0-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.
Mercury offers 94% better value per quality point. At 1M tokens/day, you'd spend $15.00/month with Mercury vs $270.00/month with Grok 3 Beta - a $255.00 monthly difference.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Higher benchmark score (0/100) indicates stronger performance on coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Faster response time (speed score 0/100) is critical for user-facing chat. Mercury also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (131K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($0.75/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (63/100) correlates with better nuance, coherence, and style in long-form content
Grok 3 Beta and Mercury are extremely close in overall performance (only 0 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
Best for Quality
Grok 3 Beta
Marginally better benchmark scores; both are excellent
Best for Cost
Mercury
94% lower pricing; better value at scale
Best for Reliability
Grok 3 Beta
Higher uptime and faster response speeds
Best for Prototyping
Grok 3 Beta
Stronger community support and better developer experience
Best for Production
Grok 3 Beta
Wider enterprise adoption and proven at scale
by xAI
| Capability | Grok 3 Beta | Mercury |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Searchdiffers | ||
| Image Output |
xAI
Inception
Mercury saves you $22.05/month
That's 94% cheaper than Grok 3 Beta at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | Grok 3 Beta | Mercury |
|---|---|---|
| Context Window | 131K | 128K |
| Max Output Tokens | -- | 32,000 |
| Open Source | No | No |
| Created | Apr 9, 2025 | Jun 26, 2025 |
Both Grok 3 Beta and Mercury score 63/100, making them extremely close competitors. Choose based on pricing, provider ecosystem, or specific capability requirements.
Grok 3 Beta is ranked #209 and Mercury is ranked #208 out of 290+ AI models. Rankings use a composite score combining benchmark performance (25%), pricing (25%), context window (15%), recency (15%), output capacity (10%), and versatility (10%). Scores update hourly.
Mercury is cheaper at $0.75/M output tokens vs Grok 3 Beta's $15.00/M output tokens - 20.0x more expensive. Input token pricing: Grok 3 Beta at $3.00/M vs Mercury at $0.25/M.
Grok 3 Beta has a larger context window of 131,072 tokens compared to Mercury's 128,000 tokens. A larger context window means the model can process longer documents and conversations.