Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)
In this head-to-head showdown, Claude 3.5 Sonnet is more budget-friendly at $15/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.
2 benchmarks evaluated across capability, speed, and cost
2024 workhorse. Still a high-intent compare against GPT-4o.
Auto-discovered from OpenRouter (openai/o3-pro). Preview until a second source matches.
Single model data
No latency data
$15 / 1M output
Relative percentile scores computed across all active models in the benchmark catalog.
Comparing top standard models across 6 key capability dimensions. Tap any spoke or dot to inspect.
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 3.5 Sonnet | OpenAI: o3 Pro | Advantage Delta |
|---|---|---|---|
| Preference Elo | — | — | |
| LiveBench | — | — | |
| SWE-bench | — | — | |
| GPQA Diamond | — | — | |
| Time to first token | — | — | |
| Output speed | 80 tok/s | — | — |
| Input price | +$17/1M | ||
| Output price | +$65/1M | ||
| Context window | — |
Simulate monthly production API costs in USD (US Dollar).
Claude 3.5 Sonnet is estimated to save $1,570.00/month ($18,840/year).
Need SWE-bench on both sides.
Lower output list price ($15/1M).
Need TTFT on both sides.
Larger window (200k).
Claude 3.5 Sonnet is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | insufficient data | Need SWE-bench on both sides. |
| High-volume chat | Claude 3.5 Sonnet | Lower output list price ($15/1M). |
| Voice / low-latency UI | insufficient data | Need TTFT on both sides. |
| Long-document RAG | Claude 3.5 Sonnet | Larger window (200k). |
| Screenshots / vision | Claude 3.5 Sonnet | Claude 3.5 Sonnet is the side marked multimodal in the catalog. |
No comments posted on this matchup yet. Be the first to share an evaluation note!
Dynamic OpenGraph banner generated at /compare/claude-3-5-sonnet-vs-o3-pro/opengraph-image
Verified Head-to-Head Telemetry
