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Compare / head-to-head

GPT-5.5vsHy3

GPT-5.5 leads 4 of 5 shared benchmarks. GPT-5.5 has the larger context window (1M tokens).

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
4 – 1
GPT-5.5 leads
Cheaper per token
list price, input + output
Larger context
GPT-5.5
1M tokens
Provider uptime (30d)
94.2446% · —
OpenAI · Tencent Hunyuan
GPT-5.5
OpenAI · released 2026-04-23
textvision
Context
1M
Max out
128K
Input /1M
$5
Output /1M
$30
Cached /1M
$0.5
Scores
21 · 10 core
Hy3
Tencent Hunyuan · released 2026-07-06
text
Context
256K
Max out
Input /1M
Output /1M
Cached /1M
Scores
41 · 8 core
Quality

Benchmark matrix

BenchmarkGPT-5.5Hy3ΔEdge
Reported by both · 5
GPQA Diamond90.7% epoch90.4% +0.3 ptGPT-5.5
LMArena Elo1465.6 1440.6 +25GPT-5.5
BrowseComp84.4% 84.2% +0.2 ptGPT-5.5
MCP Atlas75.3% 79.1% -3.8 ptHy3
Toolathlon55.6% 48.5% +7.1 ptGPT-5.5
Only GPT-5.5 reports · 16
AIME 2026100% matharenanot reported
ARC-AGI-1 (Verified)95% not reported
ARC-AGI-2 (Verified)85% not reported
FrontierMath Tier 1-351.7% not reported
FrontierMath Tier 435.4% not reported
FrontierMath Tier 4 v2 (Epoch AI run)72.5% epochnot reported
FrontierMath Tiers 1-3 v2 (Epoch AI run)85.3% epochnot reported
GDPval (wins or ties)84.9% not reported
MMMU-Pro (no tools)81.2% not reported
MMMU-Pro (with tools)83.2% not reported
OSWorld-Verified78.7% not reported
OTIS Mock AIME 2024-2025 (Epoch AI run)84.4% epochnot reported
SimpleQA Verified63% epochnot reported
SWE-Bench Pro58.6% not reported
Tau2-bench Telecom98% not reported
Terminal-Bench 2.082.7% not reported
Only Hy3 reports · 36
SWE-bench Verifiednot reported78%
Humanity's Last Exam (no tools)not reported37%
AA-LCRnot reported73.4%
Apex-Agentnot reported25.6%
ArxivMathnot reported52.2%
CL-benchnot reported23.8%
CL-bench Lifenot reported17%
ClawEvalnot reported68.5%
CMT-Benchmarknot reported37.8%
DeepSearchQAnot reported91%
DeepSWEnot reported28%
e-benchnot reported50.2%
FrontierScience-Olympiadnot reported74.8%
FrontierScience-Researchnot reported21.3%
HLE (with tools, text-only)not reported53.2%
HorizonMathnot reported7.1%
Hy-Backend 2.0not reported25%
Hy-CompanyBenchnot reported41.7%
Hy-Euler Pronot reported24.2%
Hy-FinModelBenchnot reported69%
Hy-Mathnot reported60.9%
Hy-SkillsWorldnot reported45.8%
Hy-SWE Maxnot reported49%
IMOAnswerBenchnot reported90%
MathArena Apexnot reported38.7%
NL2Reponot reported45.6%
PHYBenchnot reported77.4%
ProdBenchnot reported23%
SkillsBenchnot reported55.3%
SuperChemnot reported54.9%
SWE-bench Multilingualnot reported75.8%
SWE-bench Pronot reported57.9%
Terminal-Bench 2.1not reported71.7%
USAMO 2026not reported72%
WideSearchnot reported76.4%
WildClawBenchnot reported53.6%
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is GPT-5.5 minus Hy3 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing

Side by side

SpecGPT-5.5Hy3Edge
Context window1M tokens256K tokensGPT-5.5
Max output128K tokens
Input price / 1M$5
Output price / 1M$30
Cached input / 1M$0.5
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$35
Modalitiestext · visiontextGPT-5.5
Released2026-04-232026-07-06
Cited benchmark scores2141
Reliability

Provider status

All providers
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Which one wins on your data?

Public benchmarks are a starting point. Run GPT-5.5 and Hy3 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.