Claude 3.5 Sonnet latest vs GPT-5 nano
Claude 3.5 Sonnet latest vs GPT-5 nano: GPT-5 nano is cheaper by 98% on average. Claude 3.5 Sonnet latest from Anthropic (200,000-token context, tool calls) vs. GPT-5 nano from Azure OpenAI (272,000-token context, reasoning, tool calls). Use Agent Command Center to A/B both in shadow mode and pick the winner per workload.
Side-by-side cost
Live workload comparison
Same workload run through both models. The cheaper one is highlighted.
3,000
0272,000
400
0128,000
5,000
01,000,000
At this workload, GPT-5 nano is 98% cheaper than Claude 3.5 Sonnet latest — a savings of $2,236/month ($26,828/year).
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
model: gpt-5-nano
provider: azure-openai
fallback:
model: claude-3-5-sonnet-latest
provider: anthropic
shadow: { sample_rate: 0.05 } # mirror 5% of traffic to compare quality live| Claude 3.5 Sonnet latest | GPT-5 nano | |
|---|---|---|
| Input price | $3.00/M | $0.0500/M |
| Output price | $15.00/M | $0.400/M |
| Context window | 200,000 | 272,000 |
| Max output | 8,192 | 128,000 |
| Function calling | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio input | — | — |
| Reasoning | — | ✓ |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Pricing verified | May 7, 2026 | May 12, 2026 |
Benchmark comparison
Side-by-side public benchmark scores. Greener bar = winner.
Chatbot Arena ELOgeneral
Claude 3.5 Sonnet latest
1,283
GPT-5 nano
1,325
HumanEvalcode
Claude 3.5 Sonnet latest
93.7%
GPT-5 nano
86.3%