We break down the two most popular frontier models across eight key dimensions. Want to see how they perform on your own prompts? Try LLMWise Compare mode to run them side-by-side in a single API call.
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| Dimension | GPT-5.2 | Claude Sonnet 4.5 | Edge |
|---|---|---|---|
| Coding | GPT-5.2 generates clean, working code across many languages and excels at boilerplate-heavy tasks like REST APIs and CRUD apps. | Claude Sonnet 4.5 consistently produces more idiomatic code, catches edge cases other models miss, and handles complex refactoring with fewer iterations. | |
| Creative Writing | GPT-5.2 shines at creative prose, storytelling, and copywriting with a natural, varied voice that rarely feels robotic. | Claude Sonnet 4.5 writes well-structured long-form content and is particularly strong at maintaining tone consistency, though its style can lean formal. | |
| Math & Reasoning | GPT-5.2 handles multi-step math and logical puzzles competently, occasionally stumbling on problems that require careful symbolic manipulation. | Claude Sonnet 4.5 demonstrates strong chain-of-thought reasoning and is more reliable on graduate-level math and formal logic problems. | |
| Speed | GPT-5.2 delivers tokens at a competitive rate with low time-to-first-token, making it feel responsive for interactive use. | Claude Sonnet 4.5 is slightly slower on average, especially on longer outputs, though the gap has narrowed significantly in recent updates. | |
| Cost | GPT-5.2 pricing sits in the premium tier. High-volume users will notice the cost, particularly on long-context prompts. | Claude Sonnet 4.5 is priced similarly to GPT-5.2, with comparable per-token rates. Neither model offers a significant cost advantage. | tie |
| Context Window | GPT-5.2 supports a large context window and handles multi-document summarization well, though recall degrades in the middle of very long inputs. | Claude Sonnet 4.5 supports up to 200K tokens and is notably better at retrieving information from deep within long contexts without losing fidelity. | |
| Safety & Alignment | GPT-5.2 has mature safety filters and content policies, though it can occasionally be overly cautious on benign prompts. | Claude Sonnet 4.5 is widely regarded as the most safety-conscious frontier model, with nuanced refusals and strong adherence to system instructions. | |
| Function Calling | GPT-5.2 has best-in-class structured output and tool-use capabilities, with reliable JSON schema adherence and parallel function calls. | Claude Sonnet 4.5 supports tool use well, but GPT-5.2's function-calling ecosystem is more mature with better documentation and wider SDK support. |
Claude Sonnet 4.5 edges ahead on coding, reasoning, long-context tasks, and safety. GPT-5.2 wins on creative writing, speed, and function calling. For most developers, Claude is the stronger general-purpose choice, but GPT-5.2 remains the go-to for tool-use-heavy workflows and creative applications.
Use LLMWise Compare mode to test both models on your own prompts in one API call.
Credit-based pay-per-use with token-settled billing. No monthly subscription. Paid credits never expire.
Replace multiple AI subscriptions with one wallet that includes routing, failover, and optimization.
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