- Score
- 5.0 (+0.24 points)
- Total Cost (Current Price)
- $0.000 · 100.0% cheaper
- Response Time (avg)
- 5.36s · 24.0% faster
Inception
Release: 2026-09-02
Tested on: 2026-10-01 04:24
inception/mercury-2.5-preview::none
~100BOtherClosedEstimated
Summary
Mercury 2.5 Preview scores 4.7 on AI BENCHY and ranks #353. It has 9.9 reliability, a 29.0% pass rate, $0.023 total cost, and 7.05s average response time.
What makes Mercury 2.5 Preview unique: It stands out most in Coding, where it ranks #2, while Data parsing and extraction is its weakest area at #10. It is notably fast compared with similar models.
Recommended alternatives
We recommend choosing one of these models instead:
- Score
- 5.2 (+0.47 points)
- Total Cost (Current Price)
- $0.004 · 85.2% cheaper
- Response Time (avg)
- 3.40s · 51.8% faster
- Score
- 5.5 (+0.75 points)
- Total Cost (Current Price)
- $0.017 · 27.4% cheaper
- Response Time (avg)
- 6.00s · 14.9% faster
Model facts
Researched on 2026-09-02
- Parameters
- ~100B
- Architecture
- Other
- Availability
- Closed
- License
- -
Best estimate from public evidence; the vendor did not disclose every value. Inception identifies Mercury 2.5 as a diffusion LLM but does not disclose its parameter count; the estimate follows the Mercury 2 family record.
4.7
Consistency
8.3
9.9
Total Output Tokens
86,367
Total Input Tokens
250,541
Input Price
$0.040 / 1M
Output Price
$0.150 / 1M
Cache Read Price
N/A
Cache Write Price
N/A
Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.
Flaky tests
5
Flaky tests had mixed outcomes across runs (at least one pass and one fail).
Hamster playing table tennis
Prompt: Create a detailed SVG illustration of a hamster playing table tennis.
#353 Mercury 2.5 Preview
default
Invalid SVG
- Cost
- $0.001
- Time
- 3.3s
- Tokens
- 3,122 tok
Price History
Historical pricing data for this model from OpenRouter.
| Date | Input Price | Output Price | Cache Read Price | Cache Write Price |
|---|---|---|---|---|
| 2026-10-01 18:33 | $0.040 / 1M | $0.150 / 1M | N/A | N/A |
Charts
Choose the first model, then click a second model to open a side-by-side page.
Top Models by Score
Score vs Total Cost
Response Time (avg)
Score vs Response Time (avg)
Total Output Tokens
Score vs Total Output Tokens
Quick Compare
Mercury 2.5 PreviewdefaultvsGLM 4.7 FlashnoneMercury 2.5 PreviewdefaultvsNemotron 3.5 LightningmediumFree AvailableMercury 2.5 PreviewdefaultvsHy4 previewnoneMercury 2.5 PreviewdefaultvsNorth Mini CodedefaultFree AvailableMercury 2.5 PreviewdefaultvsQwen3.5-9BnoneMercury 2.5 PreviewdefaultvsLaguna S 2.1noneFree AvailableMercury 2.5 PreviewdefaultvsMiMo-V2.5noneMercury 2.5 PreviewdefaultvsGranite 4.2 8BhighMercury 2.5 PreviewdefaultvsLing 2.6 1tdefaultMercury 2.5 PreviewdefaultvsQwen3 Coder Nextmedium
Category Breakdown
| Category | Score | Consistency | Tests Correct |
|---|---|---|---|
| Agentic | 3.9 | 9.6 | |
| Anti-AI Tricks | 3.8 | 8.3 | |
| Coding | 4.7 | 7.9 | |
| Combined | 3.0 | 10.0 | |
| Data parsing and extraction | 6.3 | 5.8 | |
| Domain specific | 3.6 | 7.2 | |
| General Intelligence | 5.0 | 10.0 | |
| Instructions following | 6.3 | 10.0 | |
| Puzzle Solving | 5.6 | 7.4 | |
| Tool Calling | 10.0 | 10.0 | |
| Trivia | 3.0 | 10.0 |