Compare / head-to-head
Claude Sonnet 4.6vso3-pro
Claude Sonnet 4.6 and o3-pro do not yet share a public benchmark, so quality cannot be compared apples-to-apples. Claude Sonnet 4.6 is 5.6x cheaper per token. Claude Sonnet 4.6 has the larger context window (1M tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0
no overlap yet
Cheaper per token
Claude Sonnet 4.6
5.6x cheaper, input + output
Larger context
Claude Sonnet 4.6
1M tokens
Provider uptime (30d)
100% · 94.2446%
Anthropic · OpenAI
Claude Sonnet 4.6
Anthropic · released 2026-02-17
textvision
Quality
Benchmark matrix
0 shared · 18 only Claude Sonnet 4.6 · 0 only o3-pro| Benchmark | Claude Sonnet 4.6 | o3-pro | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 0 | ||||
| No public benchmark is reported for both models yet. | ||||
| Only Claude Sonnet 4.6 reports · 18 | ||||
| SWE-bench Verified | 79.6% ↗ | not reported | — | — |
| GPQA Diamond | 89.9% ↗ | not reported | — | — |
| Humanity's Last Exam (no tools) | 33.2% ↗ | not reported | — | — |
| LMArena Elo | 1458.3 ↗ | not reported | — | — |
| ARC-AGI-2 (Verified) | 58.3% ↗ | not reported | — | — |
| GDPval-AA | 1633 ↗ | not reported | — | — |
| Humanity's Last Exam (with tools) | 49% ↗ | not reported | — | — |
| MCP Atlas | 61.3% ↗ | not reported | — | — |
| MMMLU | 89.3% ↗ | not reported | — | — |
| MMMU-Pro (no tools) | 74.5% ↗ | not reported | — | — |
| MMMU-Pro (with tools) | 75.6% ↗ | not reported | — | — |
| OSWorld-Verified | 72.5% ↗ | not reported | — | — |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 85.8% ↗epoch | not reported | — | — |
| SimpleQA Verified | 35.5% ↗epoch | not reported | — | — |
| SWE-bench Verified (Epoch AI run) | 75.2% ↗epoch | not reported | — | — |
| Tau2-bench Retail | 91.7% ↗ | not reported | — | — |
| Tau2-bench Telecom | 97.9% ↗ | not reported | — | — |
| Terminal-Bench 2.0 | 59.1% ↗ | not reported | — | — |
| Only o3-pro reports · 0 | ||||
| o3-pro reports nothing Claude Sonnet 4.6 does not. | ||||
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Claude Sonnet 4.6 minus o3-pro in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | Claude Sonnet 4.6 | o3-pro | Edge |
|---|---|---|---|
| Context window | 1M tokens | 200K tokens | Claude Sonnet 4.6 |
| Max output | 128K tokens | 100K tokens | Claude Sonnet 4.6 |
| Input price / 1M | $3 ↗ | $20 ↗ | Claude Sonnet 4.6 |
| Output price / 1M | $15 ↗ | $80 ↗ | Claude Sonnet 4.6 |
| Cached input / 1M | $0.3 ↗ | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $18 | $100 | Claude Sonnet 4.6 |
| Modalities | text · vision | text · vision | Tie |
| Released | 2026-02-17 | 2025-06-10 | — |
| Cited benchmark scores | 19 | 0 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Claude Sonnet 4.6 vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run Claude Sonnet 4.6 and o3-pro on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.