Pairwise benchmark snapshot · Aug 17, 2026
In this head-to-head showdown, Claude 3.7 Sonnet delivers higher overall intelligence and human-preferred responses (Elo 1,362 vs 1,335), while Claude 3.7 Sonnet leads in SWE-bench software engineering benchmarks (70.3%), while GPT-4o is more budget-friendly at $10/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.
Hybrid-reasoning Sonnet from 2025. Kept for historical compare pages.
Previous OpenAI flagship. Still a common compare baseline on legacy pages.
Simulate accuracy gains vs added response time & token cost
Reasoning models “think before answering” by generating internal reasoning tokens. Higher effort improves math, coding, and logic accuracy, but increases response delay and token costs.
Δ 27 Arena Elo pts
110 tok/s
$10 / 1M output
Relative percentile scores computed across all active models in the benchmark catalog.
Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.
Category wins across reasoning intelligence, generation speed, and token cost.
Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy
Generation throughput and time to first token responsiveness
Cost per million tokens and max context window length
| Benchmark | Claude 3.7 Sonnet | GPT-4o | Advantage Delta |
|---|---|---|---|
| Preference Elo | Claude 3.7 Sonnet (+27) | ||
| LiveBench | Claude 3.7 Sonnet (+4.2%) | ||
| SWE-bench | Claude 3.7 Sonnet (+15.5%) | ||
| GPQA Diamond | Claude 3.7 Sonnet (+5.3%) | ||
| Time to first token | GPT-4o (+60 ms) | ||
| Output speed | 85 tok/s | 110 tok/s | GPT-4o (+25 tok/s) |
| Input price | $2.5/1M | GPT-4o (+$0.5/1M) | |
| Output price | GPT-4o (+$5/1M) | ||
| Context window | Claude 3.7 Sonnet (+72k) |
Simulate monthly production API costs in USD (US Dollar).
GPT-4o is estimated to save $92.50/month ($1,110/year).
Higher SWE-bench (70.3%).
Lower output list price ($10/1M).
Lower TTFT (180 ms).
Larger window (200k).
Both accept images. Defaulting to the higher-Elo side (Claude 3.7 Sonnet).
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | Claude 3.7 Sonnet | Higher SWE-bench (70.3%). |
| High-volume chat | GPT-4o | Lower output list price ($10/1M). |
| Voice / low-latency UI | GPT-4o | Lower TTFT (180 ms). |
| Long-document RAG | Claude 3.7 Sonnet | Larger window (200k). |
| Screenshots / vision | Claude 3.7 Sonnet | Both accept images. Defaulting to the higher-Elo side (Claude 3.7 Sonnet). |
2025 hybrid-reasoning Sonnet. Deprecated for buying, kept for old compare URLs and “what did 3.7 score?”
Deprecated for buying. Kept because “4o vs sonnet” is still a typed query.
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The real PNG is generated at /compare/claude-3-7-sonnet-vs-gpt-4o/opengraph-image for crawlers.
Verified head-to-head card
