- Score
- 9.4 (+0.08 points)
- Total Cost (Current Price)
- $0.183 · 86.3% cheaper
- Response Time (avg)
- 6.24s · 62.3% faster
Google
Release: 2026-11-12
Tested on: 2026-11-13 01:01
google/gemini-4-hydrogen::medium
~300B total (~15B active)MoEClosedEstimated
Gemini 3.8 Flash still tops Gemini 4 Argon, Carbon and Hydrogen in our tests →
Summary
Gemini 4 Hydrogen scores 9.3 on AI BENCHY and ranks #35. It has 8.9 reliability, a 91.3% pass rate, $1.330 total cost, and 16.56s average response time.
Recommended alternatives
We recommend choosing one of these models instead:
- Score
- 9.2 (-0.04 points)
- Total Cost (Current Price)
- $0.156 · 88.3% cheaper
- Response Time (avg)
- 11.67s · 29.5% faster
- Score
- 9.1 (-0.16 points)
- Total Cost (Current Price)
- $0.140 · 89.5% cheaper
- Response Time (avg)
- 16.58s · 0.1% slower
Model facts
Researched on 2026-11-12
- Parameters
- ~300B total (~15B active)
- Architecture
- MoE
- Availability
- Closed
- License
- -
Best estimate from public evidence; the vendor did not disclose every value. Google does not disclose parameter counts or architecture. Hydrogen is positioned as the high-efficiency Gemini 4 workhorse (Flash tier); the 300B total / 15B active MoE values are a low-confidence catalog estimate from the Gemini Flash family, not vendor-reported. API-only through Google AI Studio and Vertex. OpenRouter declares mandatory reasoning with low, medium, high and xhigh efforts, medium default. The fallback release date records this onboarding request date.
9.3
Consistency
8.9
8.9
$1.330
Total Output Tokens
127,550
Total Input Tokens
248,530
Input Price
$1.500 / 1M
Output Price
$7.500 / 1M
Cache Read Price
$0.075 / 1M
Cache Write Price
$0.084 / 1M
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
3
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.
#35 Gemini 4 Hydrogen
medium- Cost
- $0.059
- Time
- 48.1s
- Tokens
- 7,929 tok
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
Gemini 4 HydrogenmediumvsGPT-6.1 TerralowGemini 4 HydrogenmediumvsGemini 4 CarbonhighGemini 4 HydrogenmediumvsGPT-6.1 TerraxhighGemini 4 HydrogenmediumvsSeed 2.1 TurbolowGemini 4 HydrogenmediumvsClaude Opus 5mediumGemini 4 HydrogenmediumvsMuse EmberhighGemini 4 HydrogenmediumvsClaude Opus 5highGemini 4 HydrogenmediumvsGemini 4 HydrogenlowGemini 4 HydrogenmediumvsGemini 3.7 FlashlowGemini 4 HydrogenmediumvsMuse Spark Openhigh
Category Breakdown
| Category | Score | Consistency | Tests Correct |
|---|---|---|---|
| Agentic | 10.0 | 10.0 | |
| Anti-AI Tricks | 10.0 | 10.0 | |
| Coding | 10.0 | 10.0 | |
| Combined | 6.4 | 5.8 | |
| Data parsing and extraction | 10.0 | 10.0 | |
| Domain specific | 5.2 | 4.4 | |
| General Intelligence | 10.0 | 10.0 | |
| Instructions following | 10.0 | 10.0 | |
| Puzzle Solving | 10.0 | 10.0 | |
| Tool Calling | 10.0 | 10.0 | |
| Trivia | 10.0 | 10.0 |