Back to Value Frontier

Anthropic: Claude Opus 5.5 vs OpenAI: GPT-5 Nano (batch)

Head-to-head API cost, context, and performance comparison. Synced at 1:36:46 PM.

Executive Summary

When evaluating Anthropic: Claude Opus 5.5 against OpenAI: GPT-5 Nano (batch), the pricing structure is a key differentiator. OpenAI: GPT-5 Nano (batch) is approximately 99% more cost-effective per 1 million tokens overall.

However, when looking at raw reasoning capabilities, OpenAI: GPT-5 Nano (batch) leads with a statistical ELO score of 1484. For tasks involving complex logic, coding, or instruction-following, developers might prefer OpenAI: GPT-5 Nano (batch), provided their budget allows for the API burn rate.

Arbitrage Alert

You are losing 99%
per million tokens by hardcoding Anthropic: Claude Opus 5.5.

Stop guessing exactly which model to route to. Deploy the 0ms Intelligence Engine to automatically arbitrage this 99% gap in your production environment instantly.

99% Instant Profit Margin Recovery
Node.js Enterprise SDK included

Raw Technical comparison

Metric
Anthropic: Claude Opus 5.5
OpenAI: GPT-5 Nano (batch)
Performance (ELO)
1483
1484
Input Cost / 1M
$4.00
$0.02
Output Cost / 1M
$20.00
$0.20
Context Window
1,000,000 tokens
400,000 tokens

Verdict

If you are looking for pure performance and capability, OpenAI: GPT-5 Nano (batch) is statistically superior. However, if API burn rate is the primary concern, OpenAI: GPT-5 Nano (batch) wins out aggressively in pricing.

People Also Ask

Is Anthropic: Claude Opus 5.5 cheaper than OpenAI: GPT-5 Nano (batch)?

No. OpenAI: GPT-5 Nano (batch) is the more cost-effective model, operating at a lower price point per 1 million tokens.

Which model has the larger context window?

The Anthropic: Claude Opus 5.5 model has the advantage in memory, offering a massive 1,000,000 token limit for document ingestion.

Related Comparisons

Compare Anthropic: Claude Opus 5.5 vs Apodex: Apodex 1.1 Mini (free)Compare Anthropic: Claude Opus 5.5 vs inclusionAI: Ling 3.0 Flash Sante (free)Compare Anthropic: Claude Opus 5.5 vs Cohere: North Mini Code (free)Compare Anthropic: Claude Opus 5.5 vs NVIDIA: Nemotron 3 Nano Omni (free)