GPT 5.2 Chat latest vs GPT 5.4
GPT 5.2 Chat latest vs GPT 5.4: GPT 5.2 Chat latest is cheaper by 30% on average. GPT 5.2 Chat latest from OpenAI (128,000-token context, reasoning, tool calls) vs. GPT 5.4 from Azure OpenAI (1,050,000-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
01,050,000
400
0128,000
5,000
01,000,000
At this workload, GPT 5.2 Chat latest is 20% cheaper than GPT 5.4 — a savings of $403/month ($4,840/year).
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
model: gpt-5-2-chat-latest
provider: openai
fallback:
model: gpt-5-4
provider: azure-openai
shadow: { sample_rate: 0.05 } # mirror 5% of traffic to compare quality live| GPT 5.2 Chat latest | GPT 5.4 | |
|---|---|---|
| Input price | $1.75/M | $2.50/M |
| Output price | $14.00/M | $15.00/M |
| Context window | 128,000 | 1,050,000 |
| Max output | 16,384 | 128,000 |
| Function calling | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio input | — | — |
| Reasoning | ✓ | ✓ |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Pricing verified | May 12, 2026 | May 12, 2026 |
Benchmark comparison
Side-by-side public benchmark scores. Greener bar = winner.
Chatbot Arena ELOgeneral
GPT 5.2 Chat latest
1,477
GPT 5.4
1,477
ARC-AGIreasoning⚠ different settings
GPT 5.2 Chat latest
86.2%
GPT 5.4
93.7%
GPQA Diamondreasoning⚠ different settings
GPT 5.2 Chat latest
92.4%
GPT 5.4
92.8%
MMMU-Promultimodal⚠ different settings
GPT 5.2 Chat latest
79.5%
GPT 5.4
81.2%
ARC-AGI-2reasoning⚠ different settings
GPT 5.2 Chat latest
52.9%
GPT 5.4
73.3%
FrontierMathmath⚠ different settings
GPT 5.2 Chat latest
40.3%
GPT 5.4
47.6%
Humanity's Last Examreasoning⚠ different settings
GPT 5.2 Chat latest
34.5%
GPT 5.4
39.8%