LLM Comparison

GPT-5.5 vs Hy4 Preview: benchmark scores, pricing & comparison.

Side-by-side GPT-5.5 vs Hy4 Preview 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.

Open live leaderboardGPT-5.5 model pageHy4 Preview model page
Rank #11 vs #18AskClash overall scores 68.6 vs 58.2.
Pricing $5.00/$30.0 vs $0.83/$2.50Input and output token prices per 1M tokens when published.
Proprietary vs Open WeightOpenAI vs Tencent.

GPT-5.5 vs Hy4 Preview benchmark comparison

Green cells highlight the winning model for each metric. Scores are cached from the AskClash LLM leaderboard snapshot.

MetricGPT-5.5Hy4 Preview
Overall Score68.658.2
Leaderboard Rank#11#18
ACB62.0—
RWT8.08.5
Coding Agent Index61.0—
HLE52.243.4
GPQA93.692.3
SWE-Pro58.665.7
Terminal-Bench82.785.4
DeepSWE67.064.3
GDPval-AA—1678.0
OSWorld78.7—
MCP Atlas75.383.7
Finance Agent51.8—
MMMU-Pro81.2—
ARC-AGI 285.0—
Tau298.0—
Input Price (per 1M tokens)$5.00$0.83
Output Price (per 1M tokens)$30.0$2.50
Context Window1M1M
Benchmarks Published147

GPT-5.5 vs Hy4 Preview head-to-head charts

GPT-5.5 leads 4 and Hy4 Preview leads 4 of 8 shared benchmarks. Hy4 Preview is cheaper on a defined 1M-input / 200K-output workload. Charts show only benchmarks both models publish.

GPT-5.5Hy4 Preview
Overall
68.6GPT-5.5
58.2Hy4 Preview
RWT
8.0GPT-5.5
8.5Hy4 Preview
HLE
52.2GPT-5.5
43.4Hy4 Preview
GPQA
93.6GPT-5.5
92.3Hy4 Preview
SWE-Pro
58.6GPT-5.5
65.7Hy4 Preview
Terminal-Bench
82.7GPT-5.5
85.4Hy4 Preview
DeepSWE
67.0GPT-5.5
64.3Hy4 Preview
MCP Atlas
75.3GPT-5.5
83.7Hy4 Preview
GPT-5.5
Input$5.00
Output$30.0
Workload$11
Context1M
Hy4 Preview
Input$0.83
Output$2.50
Workload$1.33
Context1M

Workload = published cost of 1M input + 200K output tokens. Open the live leaderboard for interactive compare charts.

More GPT-5.5 and Hy4 Preview comparisons

Explore how GPT-5.5 and Hy4 Preview stack up against other top-ranked LLMs.

Claude Opus 5 vs GPT-5.5Claude Opus 5 vs Hy4 PreviewClaude Fable 5 vs GPT-5.5Claude Fable 5 vs Hy4 PreviewGLM-5.3 vs GPT-5.5GLM-5.3 vs Hy4 PreviewGrok 4.6 vs GPT-5.5Grok 4.6 vs Hy4 PreviewGPT-5.6 Sol vs GPT-5.5GPT-5.6 Sol vs Hy4 Preview

How to read this comparison

Benchmark scores

Higher is better for all benchmark scores (SWE-bench, GPQA, HLE, Terminal-Bench, etc.). Green marks the model with the higher score.

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.