Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)
Comparing verified benchmark accuracy, speed, and token pricing between OpenAI: GPT-5.5 Pro and GPT Image 2 (Low / Fast). Review the complete breakdown below to determine which model best fits your performance and budget requirements.
Auto-discovered from OpenRouter (openai/gpt-5.5-pro). Preview until a second source matches.
Fast distilled tier of GPT Image 2 designed for high-throughput interactive creative workflows at 70% lower price.
Single model data
No latency data
Unpriced
Category wins across reasoning intelligence, generation speed, and token cost.
Arena Preference Elo, prompt fidelity & typography score
Time to render full-resolution image snapshot (seconds)
API inference cost per 1,000 generated images
| Benchmark | OpenAI: GPT-5.5 Pro | GPT Image 2 (Low / Fast) | Advantage Delta |
|---|---|---|---|
| Image Elo | — | — | |
| Generation time | — | — | |
| Price per 1k images | — | — | |
| Prompt adherence | — | — | |
| Text rendering | — | — |
Simulate monthly production API costs in USD (US Dollar).
OpenAI: GPT-5.5 Pro is estimated to save $1,625.00/month ($19,500/year).
Need SWE-bench on both sides.
Need list prices.
Need TTFT on both sides.
Need context sizes.
GPT Image 2 (Low / Fast) is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | insufficient data | Need SWE-bench on both sides. |
| High-volume chat | insufficient data | Need list prices. |
| Voice / low-latency UI | insufficient data | Need TTFT on both sides. |
| Long-document RAG | insufficient data | Need context sizes. |
| Screenshots / vision | GPT Image 2 (Low / Fast) | GPT Image 2 (Low / Fast) is the side marked multimodal in the catalog. |
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Verified Head-to-Head Telemetry
