Compare / head-to-head
Claude 3.5 SonnetvsGemini 2.5 Pro
Gemini 2.5 Pro leads 4 of 4 shared benchmarks. Gemini 2.5 Pro is 1.6x cheaper per token. Gemini 2.5 Pro has the larger context window (1.0M tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 4
Gemini 2.5 Pro leads
Cheaper per token
Gemini 2.5 Pro
1.6x cheaper, input + output
Larger context
Gemini 2.5 Pro
1.0M tokens
Provider uptime (30d)
100% · 100%
Anthropic · Google
Claude 3.5 Sonnet
Anthropic · released 2024-10-22
textvision
Gemini 2.5 Pro
Google · released 2025-06-17
textvisionaudio
Quality
Benchmark matrix
4 shared · 0 only Claude 3.5 Sonnet · 8 only Gemini 2.5 Pro| Benchmark | Claude 3.5 Sonnet | Gemini 2.5 Pro | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 4 | ||||
| SWE-bench Verified | 49% ↗ | 59.6% ↗ | -10.6 pt | Gemini 2.5 Pro |
| GPQA Diamond | 55.3% ↗epoch | 86.4% ↗ | -31.1 pt | Gemini 2.5 Pro |
| AIME 2025 | 3.3% ↗matharena | 88% ↗ | -84.7 pt | Gemini 2.5 Pro |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 8.5% ↗epoch | 84.7% ↗epoch | -76.2 pt | Gemini 2.5 Pro |
| Only Claude 3.5 Sonnet reports · 0 | ||||
| Claude 3.5 Sonnet reports nothing Gemini 2.5 Pro does not. | ||||
| Only Gemini 2.5 Pro reports · 8 | ||||
| Humanity's Last Exam (no tools) | not reported | 21.6% ↗ | — | — |
| LMArena Elo | not reported | 1457.8 ↗ | — | — |
| Aider Polyglot | not reported | 82.2% ↗ | — | — |
| FrontierMath Tier 4 v2 (Epoch AI run) | not reported | 0% ↗epoch | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | not reported | 24.6% ↗epoch | — | — |
| LiveCodeBench | not reported | 74.2% ↗ | — | — |
| MMMU | not reported | 82% ↗ | — | — |
| SWE-bench Verified (Epoch AI run) | not reported | 57.6% ↗epoch | — | — |
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 3.5 Sonnet minus Gemini 2.5 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 3.5 Sonnet | Gemini 2.5 Pro | Edge |
|---|---|---|---|
| Context window | 200K tokens | 1.0M tokens | Gemini 2.5 Pro |
| Max output | 8K tokens | 66K tokens | Gemini 2.5 Pro |
| Input price / 1M | $3 ↗ | $1.25 ↗ | Gemini 2.5 Pro |
| Output price / 1M | $15 ↗ | $10 ↗ | Gemini 2.5 Pro |
| Cached input / 1M | $0.3 ↗ | $0.125 ↗ | Gemini 2.5 Pro |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $18 | $11.25 | Gemini 2.5 Pro |
| Modalities | text · vision | text · vision · audio | Gemini 2.5 Pro |
| Released | 2024-10-22 | 2025-06-17 | — |
| Cited benchmark scores | 4 | 14 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Claude 3.5 Sonnet vs …
Models sharing the most benchmarksMore matchups
Gemini 2.5 Pro vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run Claude 3.5 Sonnet and Gemini 2.5 Pro on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.