Claude Opus 4.7 (Fast) vs GPT-5 Nano
A side-by-side comparison of two multimodal models — real specs, pricing, strengths and weaknesses, and a clear verdict on which to choose. Kept current by our agents.
Quick verdict: which should you choose?
Choose Claude Opus 4.7 (Fast) if you need
- ✓fast, low-cost responses at 160.32 t/s and $0.4 per million tokens
- ✓efficient handling of large 400k contexts with text, image, and file inputs
- ✓lightweight design for extended document tasks without heavy resource use
- ✓practical performance where advanced reasoning depth is not critical
Choose GPT-5 Nano if you need
- ✓highest intelligence at 53.5 index with nuanced, careful reasoning
- ✓largest 1M context window and strong safety alignment
- ✓effective large-context multimodal handling in a fast variant
- ✓tasks requiring reduced latency without sacrificing alignment
Verdict
GPT-5 Nano leads decisively on speed and price while supporting solid multimodal inputs up to 400k context, making it practical for high-volume document work. Claude Opus 4.7 (Fast) dominates on intelligence index and maximum context size with stronger reasoning and safety features, though at far higher cost and lower throughput. The choice hinges on whether lightweight efficiency or nuanced capability matters most.
Claude Opus 4.7 (Fast) vs GPT-5 Nano: side by side
| Spec | Claude Opus 4.7 (Fast) | GPT-5 Nano | Winner |
|---|---|---|---|
| Intelligence | 53.5 | 19.9 | Claude Opus 4.7 (Fast) |
| Output speed | 51 t/s | 160 t/s | GPT-5 Nano |
| Output price | $150.00/1M | $0.40/1M | GPT-5 Nano |
| Context | 1000K | 400K | Claude Opus 4.7 (Fast) |
| Params | — | — | Tie |
| Provider | Anthropic | OpenAI | Tie |
Detailed analysis
Intelligence
Winner: Claude Opus 4.7 (Fast)Claude Opus 4.7 (Fast) scores 53.5 on the intelligence index versus GPT-5 Nano's 19.9. This gap reflects Claude's strengths in nuanced reasoning and complex tasks. GPT-5 Nano's lower score aligns with its noted limitations in capability depth.
Speed
Winner: GPT-5 NanoGPT-5 Nano outputs at 160.32 tokens per second, more than triple Claude Opus 4.7 (Fast)'s 51.48 t/s. Its lightweight design directly supports faster responses. Claude's multimodal tasks can further increase latency.
Pricing
Winner: GPT-5 NanoGPT-5 Nano costs $0.4 per million output tokens compared to Claude Opus 4.7 (Fast)'s $150 per million. The 375x price difference favors GPT-5 Nano for high-volume use. Both are proprietary models from major providers.
Context Length
Winner: Claude Opus 4.7 (Fast)Claude Opus 4.7 (Fast) supports up to 1M tokens versus GPT-5 Nano's 400k. Both handle text, image, and file inputs effectively within their limits. Claude's larger window suits the most extensive contexts despite higher resource demands.
Claude Opus 4.7 (Fast)
Pros
- +Strong safety alignment
- +Nuanced and careful reasoning
- +Effective large-context handling
Cons
- –May decline edge-case or risky requests
- –Multimodal tasks can increase response time
- –Large context usage remains resource-heavy
GPT-5 Nano
Pros
- +Handles very large contexts efficiently
- +Supports text, image, and file inputs
- +Lightweight design for faster responses
Cons
- –Lower capability depth than full-scale models
- –May struggle with highly complex reasoning
- –Trade-off in advanced task performance
Summary: Claude Opus 4.7 (Fast) vs GPT-5 Nano
Select GPT-5 Nano when speed, low cost, and efficient large-context multimodal work are priorities. Choose Claude Opus 4.7 (Fast) when maximum intelligence, safety, and the largest context window are required despite the steep price and slower speed.
Frequently asked questions
Neither is universally better; GPT-5 Nano excels in speed and cost while Claude Opus 4.7 (Fast) leads in intelligence and context size.