Benchmark scores
Higher is better for all benchmark scores (SWE-bench, GPQA, HLE, Terminal-Bench, etc.). Green marks the model with the higher score.
LLM Comparison
Claude Sonnet 5.5 vs Gemini 4 Hydrogen: benchmark scores, pricing & comparison.
Side-by-side Claude Sonnet 5.5 vs Gemini 4 Hydrogen comparison across SWE-bench, GPQA, HLE, Terminal-Bench, coding agent scores, token pricing, context window, and AskClash RWT. Green marks the winner on each benchmark.
Verdict: Claude Sonnet 5.5 ranks higher (#3 vs #13) and wins 4 of 5 shared benchmarks; Gemini 4 Hydrogen costs less ($1.50/$7.50 vs $2.00/$10.0 per 1M tokens).
Rank #3 vs #13AskClash overall scores 77.7 vs 62.8.
Pricing $2.00/$10.0 vs $1.50/$7.50Input and output token prices per 1M tokens when published.
Proprietary vs ProprietaryAnthropic vs Google.
Claude Sonnet 5.5 vs Gemini 4 Hydrogen benchmark comparison
Green cells highlight the winning model for each metric. Scores are cached from the AskClash LLM leaderboard snapshot.
| Metric | Claude Sonnet 5.5 | Gemini 4 Hydrogen |
|---|---|---|
| Overall Score | 77.7 | 62.8 |
| Leaderboard Rank | #3 | #13 |
| ACB | 76.6 | 70.2 |
| AA Intelligence Index | 56.0 | 53.9 |
| AutomationBench-AA | 71.8 | 76.1 |
| Coding Agent Index | 59.3 | — |
| HLE | 64.5 | — |
| GPQA | 95.6 | — |
| SWE-Pro | 81.3 | — |
| SWE-Atlas | 64.2 | — |
| Terminal-Bench 4.0 | 63.6 | 54.0 |
| DeepSWE | 71.0 | — |
| GDPval-AA | 1837.8 | — |
| Finance Agent v2.1 | 67.3 | 65.1 |
| Input Price (per 1M tokens) | $2.00 | $1.50 |
| Output Price (per 1M tokens) | $10.0 | $7.50 |
| Context Window | 1M | 1M |
| Benchmarks Published | 13 | 5 |
Gemini 4 Hydrogen: its diagnostic ACB uses a review slice and sampled video frames.
Claude Sonnet 5.5 vs Gemini 4 Hydrogen head-to-head charts
Claude Sonnet 5.5 leads 4 and Gemini 4 Hydrogen leads 1 of 5 shared benchmarks. Gemini 4 Hydrogen is cheaper on a defined 1M-input / 200K-output workload. Charts show only benchmarks both models publish.
Claude Sonnet 5.5Gemini 4 Hydrogen
Overall
ACB
AA Intelligence Index
AutomationBench-AA
Terminal-Bench 4.0
Finance Agent v2.1
Claude Sonnet 5.5
Input$2.00
Output$10.0
Workload$4.00
Context1M
Gemini 4 Hydrogen
Input$1.50
Output$7.50
Workload$3.00
Context1M
Workload = published cost of 1M input + 200K output tokens. Open the live leaderboard for interactive compare charts.
More Claude Sonnet 5.5 and Gemini 4 Hydrogen comparisons
Explore how Claude Sonnet 5.5 and Gemini 4 Hydrogen stack up against other top-ranked LLMs.
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How to read this comparison
Token pricing
Lower is better for input and output prices. Green marks the cheaper model per 1M tokens.
Coverage matters
Models with fewer disclosed benchmark cells may have inflated percentile scores. Check the benchmark cell count for context.
This comparison page is generated from the AskClash LLM leaderboard cache. Open the live leaderboard for real-time scores and interactive filtering.