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OpenAI: GPT-4.1 Nano vs OpenAI: GPT-5.6 Sol

On input price, OpenAI: GPT-4.1 Nano is ~40.0× cheaper. Verified 2026-10-21.

OpenAI: GPT-4.1 Nano $0.100/$0.400vsOpenAI: GPT-5.6 Sol $4.00/$20.00

Verdict

On blended price (3:1 input:output), OpenAI: GPT-4.1 Nano is ~45.7× cheaper ($0.100/$0.400 vs $4.00/$20.00 per 1M tokens).

Pricing

Per-million-token list prices, verified 2026-10-21. Green marks the better value.

MetricOpenAI: GPT-4.1 NanoOpenAI: GPT-5.6 Sol
Input / 1M$0.100$4.00
Output / 1M$0.400$20.00
Cache read / 1M$0.025$0.400
Blended (3:1)$0.175/1M$8.00/1M
Estimated monthly costOpenAI: GPT-4.1 NanoOpenAI: GPT-5.6 Sol
Chatbot10,000 reqs · 800/400 tok$2.40$112.00
Coding agent5,000 reqs · 8000/2000 tok$8.00$360.00
RAG pipeline30,000 reqs · 4000/500 tok$18.00$780.00

Plug in your own numbers in the calculator, or paste a real bill into the Bill Shredder.

Specifications & capabilities

MetricOpenAI: GPT-4.1 NanoOpenAI: GPT-5.6 Sol
Context window1.0M1.1M
Max output33K128K
Vision input✓✓
Tool calling✓✓
Reasoning–✓

Quality

Intelligence Index by Artificial Analysis (independent evaluations, 0–100).

Verified intelligence scores aren't available for both models yet. See the full leaderboard.

Performance

Measured by Artificial Analysis on live endpoints.

Output speed — higher is better
OpenAI: GPT-4.1 Nano200 tok/s
OpenAI: GPT-5.6 Sol75 tok/s
Latency (TTFT) — lower is better
OpenAI: GPT-4.1 Nano450 ms
OpenAI: GPT-5.6 Sol1,400 ms
MetricOpenAI: GPT-4.1 NanoOpenAI: GPT-5.6 Sol
Cost per task$0.000002$0.000018

Provider

Infrastructure metrics for the organizations behind these models.

MetricOpenAIOpenAI
Listed endpoints1212
Reliability99.9%99.9%
Avg latency450 ms450 ms
Pricing tiersstandard, batch, provisionedstandard, batch, provisioned

Full details: OpenAI: GPT-4.1 Nano pricing · OpenAI: GPT-5.6 Sol pricing