Updated March 25, 2026· Based on independent benchmark data
Anthropic: Claude Sonnet 4 and OpenAI: GPT-5.2 Chat are virtually tied on intelligence (51.7 vs 51.3). OpenAI: GPT-5.2 Chat is 1.7x cheaper at $1.75/1M tokens vs $3.00/1M.
| Metric | Anthropic: Claude Sonnet 4 | OpenAI: GPT-5.2 Chat |
|---|---|---|
| Intelligence Score | 51.7 | 51.3 |
| Coding Score | 50.9 | 48.7 |
| Math Score | N/A | 99.0 |
| Speed (tok/s) | 65 tok/s | 69 tok/s |
| Latency (TTFT) | 38.68s | 72.74s |
| Input Price / 1M tokens | $3.00 | $1.75 |
| Output Price / 1M tokens | $15 | $14 |
| Context Window | 200K |
Anthropic: Claude Sonnet 4 and OpenAI: GPT-5.2 Chat perform similarly on overall intelligence, scoring 51.7 and 51.3 respectively. For coding tasks, Anthropic: Claude Sonnet 4 has the edge with a coding score of 50.9 vs 48.7.
Both models deliver similar output speeds: Anthropic: Claude Sonnet 4 at 65 tok/s and OpenAI: GPT-5.2 Chat at 69 tok/s. Time to first token is 38.68s for Anthropic: Claude Sonnet 4 vs 72.74s for OpenAI: GPT-5.2 Chat, which affects perceived responsiveness in interactive applications.
OpenAI: GPT-5.2 Chat is more affordable at $1.75/1M input tokens ($14/1M output), while Anthropic: Claude Sonnet 4 costs $3.00/1M input ($15/1M output). For a typical workload of 100 requests per day at 2,000 tokens each, Anthropic: Claude Sonnet 4 would cost approximately $18.00/month vs $10.50/month for OpenAI: GPT-5.2 Chat in input costs alone.
Anthropic: Claude Sonnet 4 offers a larger context window at 200K tokens compared to OpenAI: GPT-5.2 Chat's 128K. For output length, Anthropic: Claude Sonnet 4 can generate up to 64K tokens per response vs 16K for OpenAI: GPT-5.2 Chat.
Choose Anthropic: Claude Sonnet 4 when you need stronger coding performance (50.9). Choose OpenAI: GPT-5.2 Chat when you need lower cost.
Anthropic: Claude Sonnet 4 scores higher on coding benchmarks (50.9 vs 48.7), making it the better choice for programming tasks.
OpenAI: GPT-5.2 Chat is cheaper at $1.75/1M input tokens vs $3.00/1M for Anthropic: Claude Sonnet 4.
OpenAI: GPT-5.2 Chat is faster, producing output at 69 tok/s compared to Anthropic: Claude Sonnet 4's 65 tok/s.
Yes, Anthropic: Claude Sonnet 4 supports image input. OpenAI: GPT-5.2 Chat also supports images.
Benchmark data by Artificial Analysis
Data last synced: March 25, 2026
| 128K |
| Max Output Tokens | 64K | 16K |
| Input Modalities | Image + Text + File | File + Image + Text |
| Output Modalities | Text | Text |
| Free Tier | No | No |
Anthropic: Claude Sonnet 4 has a larger context window at 200K compared to OpenAI: GPT-5.2 Chat's 128K.
Both models perform similarly on intelligence benchmarks. Choose based on specific needs: pricing, speed, context window, or provider ecosystem.