Claude Sonnet 4.6 vs GPT 5.2

Claude Sonnet 4.6 vs GPT 5.2: GPT 5.2 is cheaper by 13%. Claude Sonnet 4.6 from Anthropic (1,000,000-token context) vs. GPT 5.2 from OpenAI (272,000-token context). 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
01,000,000
400
0128,000
5,000
01,000,000
Anthropic
$2,283/mo
Input $3.00/M · Output $15.00/M
GPT 5.2Cheaper
OpenAI
$1,651/mo
Input $1.75/M · Output $14.00/M
At this workload, GPT 5.2 is 28% cheaper than Claude Sonnet 4.6 — a savings of $632/month ($7,579/year).
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
  model: gpt-5-2
  provider: openai
fallback:
  model: claude-sonnet-4-6
  provider: anthropic
shadow: { sample_rate: 0.05 }   # mirror 5% of traffic to compare quality live
Claude Sonnet 4.6 GPT 5.2
Input price $3.00/M $1.75/M
Output price $15.00/M $14.00/M
Context window 1,000,000 272,000
Max output 64,000 128,000
Function calling
Vision
Audio input
Reasoning
Prompt caching
Structured output
Pricing verified May 16, 2026 May 16, 2026
Cheaper option
~13% cheaper than the priciest in this pair
Larger context
1,000,000 tokens
More capabilities
5 of 6 capability flags advertised

Benchmark comparison

Side-by-side public benchmark scores. Greener bar = winner.

Chatbot Arena ELOgeneral
Claude Sonnet 4.6
1,466
GPT 5.2
1,477
AIME 2025math
Claude Sonnet 4.6
GPT 5.2
100.0%
GPQA Diamondreasoning
Claude Sonnet 4.6
89.9%
GPT 5.2
92.4%
τ-bench (retail)agent
Claude Sonnet 4.6
91.7%
GPT 5.2
MMLUgeneral
Claude Sonnet 4.6
89.3%
GPT 5.2
89.6%
ARC-AGIreasoning
Claude Sonnet 4.6
GPT 5.2
86.2%
SWE-bench Verifiedagent
Claude Sonnet 4.6
79.6%
GPT 5.2
80.0%
MMMU-Promultimodal⚠ different settings
Claude Sonnet 4.6
74.5%
GPT 5.2
79.5%
ARC-AGI-2reasoning⚠ different settings
Claude Sonnet 4.6
58.3%
GPT 5.2
52.9%
SWE-benchagent
Claude Sonnet 4.6
GPT 5.2
55.6%
FrontierMathmath
Claude Sonnet 4.6
GPT 5.2
40.3%
Humanity's Last Examreasoning⚠ different settings
Claude Sonnet 4.6
33.2%
GPT 5.2
34.5%