gpt-4.1 vs claude-sonnet-4-5
Side-by-side comparison of gpt-4.1 and claude-sonnet-4-5 — benchmarks, pricing, context window and capabilities. Both are accessible through Requesty's unified API. claude-sonnet-4-5 outperforms gpt-4.1 on 6 of 9 shared benchmarks.
gpt-4.1
Input / 1M
$2.00
Output / 1M
$8.00
Context
1.0M
Model ID
openai/gpt-4.1
claude-sonnet-4-5
Input / 1M
$3.00
Output / 1M
$15.00
Context
1M
Model ID
anthropic/claude-sonnet-4-5
Benchmark comparison
MMLU Proknowledge
gpt-4.185.3%
claude-sonnet-4-583.8%
GPQA Diamondreasoning
gpt-4.174.1%
claude-sonnet-4-574.2%
HumanEvalcoding
gpt-4.191.8%
claude-sonnet-4-592.0%
SWE-Bench Verifiedcoding
gpt-4.168.1%
claude-sonnet-4-570.8%
MATHmath
gpt-4.189.2%
claude-sonnet-4-587.5%
AIME 2024math
gpt-4.172.4%
claude-sonnet-4-576.1%
MMMUmultimodal
gpt-4.174.8%
claude-sonnet-4-573.1%
LiveBenchreasoning
gpt-4.166.7%
claude-sonnet-4-569.5%
τ-bench Retailagentic
gpt-4.165.1%
claude-sonnet-4-567.3%
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-4.1 | claude-sonnet-4-5 | |
|---|---|---|
| Input price / 1M | $2.00 | $3.00 |
| Output price / 1M | $8.00 | $15.00 |
| Context window | 1.0M tokens | 1M tokens |
| Max output | 33K tokens | 64K tokens |
| Vision input | Yes | Yes |
| Tool calling | Yes | Yes |
| Reasoning | — | Yes |
| Prompt caching | Yes | Yes |
| Computer use | — | Yes |
| Provider | OpenAI Inc. | Anthropic PBC |
Questions people ask
Is gpt-4.1 better than claude-sonnet-4-5?
claude-sonnet-4-5 outperforms gpt-4.1 on 6 of 9 shared benchmarks. See the benchmark comparison above for specifics — gpt-4.1 and claude-sonnet-4-5 have different strengths across reasoning, coding, math and multimodal tasks.
Which is cheaper — gpt-4.1 or claude-sonnet-4-5?
gpt-4.1 is cheaper. gpt-4.1 costs $2.00/$8.00 per 1M input/output tokens, while claude-sonnet-4-5 costs $3.00/$15.00.
Can I use gpt-4.1 and claude-sonnet-4-5 through the same API?
Yes. Requesty provides a single OpenAI-compatible API that routes to both. Change just the "model" parameter to switch — "openai/gpt-4.1" or "anthropic/claude-sonnet-4-5" — no other code changes needed.
What are the context windows?
gpt-4.1 supports up to 1.0M tokens of context. claude-sonnet-4-5 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-4.1 and claude-sonnet-4-5 with one line of code
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