gpt-5.2-codex vs claude-sonnet-4-6
Side-by-side comparison of gpt-5.2-codex and claude-sonnet-4-6 — benchmarks, pricing, context window and capabilities. Both are accessible through Requesty's unified API. gpt-5.2-codex outperforms claude-sonnet-4-6 on 8 of 8 shared benchmarks.
gpt-5.2-codex
Input / 1M
$1.75
Output / 1M
$14.00
Context
400K
Model ID
openai-responses/gpt-5.2-codex
claude-sonnet-4-6
Input / 1M
$3.00
Output / 1M
$15.00
Context
1M
Model ID
anthropic/claude-sonnet-4-6
Benchmark comparison
MMLU Proknowledge
gpt-5.2-codex88.4%
claude-sonnet-4-685.2%
GPQA Diamondreasoning
gpt-5.2-codex82.1%
claude-sonnet-4-676.8%
HumanEvalcoding
gpt-5.2-codex97.5%
claude-sonnet-4-693.5%
SWE-Bench Verifiedcoding
gpt-5.2-codex84.7%
claude-sonnet-4-677.2%
MATHmath
gpt-5.2-codex93.2%
claude-sonnet-4-689.4%
AIME 2024math
gpt-5.2-codex89.4%
claude-sonnet-4-680.4%
MMMUmultimodal
gpt-5.2-codex—
claude-sonnet-4-674.3%
LiveBenchreasoning
gpt-5.2-codex76.8%
claude-sonnet-4-671.8%
τ-bench Retailagentic
gpt-5.2-codex72.1%
claude-sonnet-4-670.1%
Scores sourced from official model cards, Artificial Analysis, and public leaderboards. Benchmarks measure specific skills and don't capture every aspect of model quality.
Pricing & specifications
| gpt-5.2-codex | claude-sonnet-4-6 | |
|---|---|---|
| Input price / 1M | $1.75 | $3.00 |
| Output price / 1M | $14.00 | $15.00 |
| Context window | 400K tokens | 1M tokens |
| Max output | 128K tokens | 64K tokens |
| Vision input | Yes | Yes |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Prompt caching | Yes | Yes |
| Computer use | — | Yes |
| Provider | OpenAI Responses | Anthropic PBC |
Questions people ask
Is gpt-5.2-codex better than claude-sonnet-4-6?
gpt-5.2-codex outperforms claude-sonnet-4-6 on 8 of 8 shared benchmarks. See the benchmark comparison above for specifics — gpt-5.2-codex and claude-sonnet-4-6 have different strengths across reasoning, coding, math and multimodal tasks.
Which is cheaper — gpt-5.2-codex or claude-sonnet-4-6?
gpt-5.2-codex is cheaper. gpt-5.2-codex costs $1.75/$14.00 per 1M input/output tokens, while claude-sonnet-4-6 costs $3.00/$15.00.
Can I use gpt-5.2-codex and claude-sonnet-4-6 through the same API?
Yes. Requesty provides a single OpenAI-compatible API that routes to both. Change just the "model" parameter to switch — "openai-responses/gpt-5.2-codex" or "anthropic/claude-sonnet-4-6" — no other code changes needed.
What are the context windows?
gpt-5.2-codex supports up to 400K tokens of context. claude-sonnet-4-6 supports up to 1M tokens. Longer context means you can feed larger documents or codebases in a single prompt, though quality often degrades past 128K for most models.
Switch between gpt-5.2-codex and claude-sonnet-4-6 with one line of code
Requesty provides a single OpenAI-compatible API for 400+ models. Change the model parameter, not your code.
Get started free