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| 3 models | openaiOpenAI: GPT-5.5 Pro (batch)Remove × | openaiOpenAI: GPT-6.1 SolRemove × | googleGoogle: Gemini 4 ArgonRemove × |
|---|---|---|---|
| What’s different | GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for... | Requires Responses API for tools; offers Ultrafast inference with US or EU data residency. | Long decode can use the unified 1M-token budget for output; reads video, audio and PDFs, with implicit-only caching. |
| Date | Apr 24, 2026Listed | Sep 29, 2026Released | Sep 30, 2026Released |
API prices USD · provider configuration shown below | |||
| Listed rate | $15.00 in / $90.00 out/ 1M tokensOpenAI · via OpenRouter · all routes ↗openai · prompt ≤ 272000 tokens | $1.00 in / $5.00 out/ 1M tokensOpenAI · via OpenRouter · all routes ↗openai/flex · tier=flex · prompt ≤ 272000 tokens | $1.00 in / $5.00 out/ 1M tokensGoogle AI Studio · via OpenRouter · all routes ↗google-ai-studio/flex · tier=flex |
| Provider endpoints | 2 endpoints → | 10 endpoints → | 8 endpoints → |
Benchmarks Each result retains its evaluation configuration | |||
| AA Intelligence ↗4.3.2 | Not reported | 51.83 ↗Effort: max · MaxIndependent result | 52.56 ↗Effort: high · HighIndependent result |
| AA-Briefcase ↗1.1 | Not reported | 1,556.34 ↗Effort: max · MaxIndependent result | 1,485.76 ↗Effort: high · HighIndependent result |
| GDPval-AA ↗2.1 | Not reported | 1,592.1 ↗Effort: max · MaxIndependent result | 1,623.11 ↗Effort: high · HighIndependent result |
| AutomationBench-AA ↗AA Index 4.3.2 collection | Not reported | 64.87% ↗Effort: max · MaxIndependent result | 77.51% ↗Effort: high · HighIndependent result |
| Terminal-Bench 4.0 · AA ↗ | Not reported | 56.06% ↗Effort: max · MaxHarness unreportedIndependent result | 57.07% ↗Effort: high · HighHarness unreportedIndependent result |
| SciCode ↗AA Index 4.3.2 collection | Not reported | 54.17% ↗AA · Under reviewEffort: max · MaxIndependent result | 61.81% ↗AA · Under reviewEffort: high · HighIndependent result |
| Humanity’s Last Exam ↗AA Index 4.3.2 collection | Not reported | 52.92% ↗Effort: max · MaxIndependent result | 57.09% ↗Effort: high · HighIndependent result |
| GDP.pdf ↗AA Index 4.3.2 collection | Not reported | 31% ↗Effort: max · MaxIndependent result | 21.8% ↗Effort: high · HighIndependent result |
| CritPt ↗AA Index 4.3.2 collection | Not reported | 31.71% ↗AA · Under reviewEffort: max · MaxIndependent result | 27.14% ↗AA · Under reviewEffort: high · HighIndependent result |
| AA-Omniscience ↗AA Index 4.3.2 collection | Not reported | 41.53 ↗Effort: max · MaxIndependent result | 42.35 ↗Effort: high · HighIndependent result |
| AA-LCR ↗1.1 | Not reported | 83% ↗Effort: max · MaxIndependent result | 79.67% ↗Effort: high · HighIndependent result |
| LiveBench ↗2.0 · 2026-10-14 (dataset 2026-09-02) | Not reported | 85.41% ↗Effort: max · single run · equal mean of 7 suitesIndependent result | 84.1% ↗Effort: high · single run · equal mean of 7 suitesIndependent result |
| LiveBench Design ↗2.0 · 2026-10-14 (dataset 2026-09-02) | Not reported | 82.1% ↗Effort: max · single runIndependent result | 73.7% ↗Effort: high · single runIndependent result |
| LiveBench Research ↗2.0 · 2026-10-14 (dataset 2026-09-02) | Not reported | 83.5% ↗Effort: max · single runIndependent result | 83.1% ↗Effort: high · single runIndependent result |
| LiveBench Browser Use ↗2.0 · 2026-10-14 (dataset 2026-09-02) | Not reported | 88% ↗Effort: max · single runIndependent result | 92% ↗Effort: high · single runIndependent result |
| LiveBench Coding ↗2.0 · 2026-10-14 (dataset 2026-09-02) | Not reported | 96% ↗Effort: max · single runIndependent result | 89.7% ↗Effort: high · single runIndependent result |
| LiveBench Agentic ↗2.0 · 2026-10-14 (dataset 2026-09-02) | Not reported | 73% ↗Effort: max · single runIndependent result | 69.9% ↗Effort: high · single runIndependent result |
| LiveBench Data Analysis ↗2.0 · 2026-10-14 (dataset 2026-09-02) | Not reported | 82.7% ↗Effort: max · single runIndependent result | 85.2% ↗Effort: high · single runIndependent result |
| LiveBench Reasoning ↗2.0 · 2026-10-14 (dataset 2026-09-02) | Not reported | 92.6% ↗Effort: max · single runIndependent result | 95.1% ↗Effort: high · single runIndependent result |
Specifications | |||
| Context window | 1.1M | 1.1M | 1M |
| Max output | 128K | 128K | 943.7K |
| Parameters | — | — | — |
| Tool calling | Supported | Supported | Supported |
| Structured output | Supported | Supported | Supported |
| Image input | Supported | Supported | Supported |
| Audio input | Not reported | Not reported | Supported |
| Video input | Not reported | Not reported | Supported |
| Reasoning | Supported | Supported | Supported |
| Prompt caching | Not reported | Supported | Supported |