Model comparison
Gemini 4 Argon vs GPT-5.5 Pro
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 56.5 on the Noometry Index.
Last verified . 1 shared benchmarks.
GoogleSummary
- They share 1 benchmark with published results for both. Gemini 4 Argon scores higher in 0 categories and GPT-5.5 Pro in 3 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.5 Pro leads 73.3 to 44.2.
Side by side
| Gemini 4 Argon | GPT-5.5 Pro | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 56.5 | 64.3 |
| Released | 2026-09-30 | 2026-04-23 |
| Weights | Proprietary | Proprietary |
| Context window | — | 1.05M |
| Max output | — | 128K |
| Input $ / M tokens | — | $30 |
| Output $ / M tokens | — | $180 |
| Results tracked | 21 | 14 |
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Category by category
Coding Not comparable
Gemini 4 Argon: 62.0 (#9), GPT-5.5 Pro: —
| Benchmark | Gemini 4 Argon | GPT-5.5 Pro |
|---|---|---|
| LMArena WebDev | 1678 | — |
| FrontierSWE | 55% | — |
| SciCode | 61.8% | — |
| LMArena Coding | 1550 | — |
Agentic & Tool Use Not comparable
Gemini 4 Argon: 49.2 (#8), GPT-5.5 Pro: —
| Benchmark | Gemini 4 Argon | GPT-5.5 Pro |
|---|---|---|
| APEX-Agents | 82.2% | — |
| Vending-Bench 2 | 13,718 | — |
Reasoning GPT-5.5 Pro leads
Gemini 4 Argon: 44.2 (#47), GPT-5.5 Pro: 73.3 (#10)
| Benchmark | Gemini 4 Argon | GPT-5.5 Pro |
|---|---|---|
| CritPt | 27.1% | 30.6% |
| ARC-AGI-2 | — | 84.6% |
| SimpleBench | — | 76.9% |
| ARC-AGI-1 | — | 96.5% |
| Chess Puzzles | — | 64% |
| LMArena Hard Prompts | 1548 | — |
| DTBench | — | 96% |
| LMCA | — | 53.9% |
| Epoch Capabilities Index | — | 162.07 |
Math GPT-5.5 Pro leads
Gemini 4 Argon: 73.9 (#17), GPT-5.5 Pro: 84.0 (#10)
| Benchmark | Gemini 4 Argon | GPT-5.5 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 87.7% |
| FrontierMath Tier 4 | — | 78% |
| OTIS Mock AIME 2024-2025 | — | 100% |
| ProofBench | 99% | — |
| LMArena Math | 1536 | — |
| FrontierMath (Feb 2025 set) | — | 52.4% |
| FrontierMath Tier 4 (v1) | — | 39.6% |
Knowledge GPT-5.5 Pro leads
Gemini 4 Argon: 43.9 (#89), GPT-5.5 Pro: 64.1 (#19)
| Benchmark | Gemini 4 Argon | GPT-5.5 Pro |
|---|---|---|
| GPQA Diamond | — | 93.9% |
| LMArena Expert | 1553 | — |
Multimodal Not comparable
Gemini 4 Argon: 46.5 (#14), GPT-5.5 Pro: —
| Benchmark | Gemini 4 Argon | GPT-5.5 Pro |
|---|---|---|
| Blueprint-Bench 2 | 54.4% | — |
Multilingual Not comparable
Gemini 4 Argon: 60.3 (#1), GPT-5.5 Pro: —
| Benchmark | Gemini 4 Argon | GPT-5.5 Pro |
|---|---|---|
| LMArena Non-English | 1523 | — |
| LMArena Chinese | 1610 | — |
| LMArena Russian | 1537 | — |
| LMArena Spanish | 1497 | — |
Instruction Following Not comparable
Gemini 4 Argon: 80.1 (#2), GPT-5.5 Pro: —
| Benchmark | Gemini 4 Argon | GPT-5.5 Pro |
|---|---|---|
| LMArena Instruction Following | 1538 | — |
Long Context Not comparable
Gemini 4 Argon: 47.6 (#15), GPT-5.5 Pro: —
| Benchmark | Gemini 4 Argon | GPT-5.5 Pro |
|---|---|---|
| LMArena Longer Query | 1549 | — |
Writing & Preference Not comparable
Gemini 4 Argon: 71.4 (#19), GPT-5.5 Pro: —
| Benchmark | Gemini 4 Argon | GPT-5.5 Pro |
|---|---|---|
| LMArena Text | 1534 | — |
| LMArena Creative Writing | 1531 | — |
| LMArena Multi-Turn | 1557 | — |
Frequently asked questions
Is Gemini 4 Argon better than GPT-5.5 Pro?
GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 56.5 on the Noometry Index.
How many benchmarks do Gemini 4 Argon and GPT-5.5 Pro share?
1 benchmark has published results for both models. Gemini 4 Argon has 21 scored results on Noometry and GPT-5.5 Pro has 14.