Claude Opus 4.8vsGemini 3.1 Pro Preview
Across 3 shared benchmarks, Claude Opus 4.8 leads overall: Claude Opus 4.8 wins 3, Gemini 3.1 Pro Preview wins 0, with 0 ties and an average score difference of +9.83.
Claude Opus 4.8
Anthropic · 2026-05-28 · Reasoning model
Gemini 3.1 Pro Preview
Google Deep Mind · 2026-02-20 · Multimodal model
Claude Opus 4.83 wins(100%)(0%)0 winsGemini 3.1 Pro Preview
Benchmark scores
Grouped by capability, sorted by largest gap within each. 3 shared benchmarks.
Coding and Software Engineer
Claude Opus 4.8 2/2| Benchmark | Claude Opus 4.8 | Gemini 3.1 Pro Preview | Diff |
|---|---|---|---|
| SWE-Bench Pro - Public | 69.202 / 41Extended (with tools) | 54.2021 / 41Thinking High (With Tools) | +15 |
| SWE-bench Verified | 88.602 / 106Extended (with tools) | 80.608 / 106Thinking High (With Tools) | +8 |
General Knowledge
Claude Opus 4.8 1/1Specs
| Field | Claude Opus 4.8 | Gemini 3.1 Pro Preview |
|---|---|---|
| Publisher | Anthropic | Google Deep Mind |
| Release date | 2026-05-28 | 2026-02-20 |
| Model type | Reasoning model | Multimodal model |
| Architecture | Dense | Dense |
| Parameters | 0.0 | 0.0 |
| Context length | 1M | 1M |
| Max output | 128000 | 32768 |
API pricing
Prices use DataLearner records when available; missing fields are not inferred.
| Item | Claude Opus 4.8 | Gemini 3.1 Pro Preview |
|---|---|---|
| Text input | $5 / 1M tokens | $2 / 1M tokens |
| Text output | $25 / 1M tokens | $12 / 1M tokens |
| Cache read | $0.5 / 1M tokens | Not public |
| Cache write | $6.25 / 1M tokens | Not public |
Summary
- Claude Opus 4.8leads in:Coding and Software Engineer (2/2), General Knowledge (1/1)
On average across the 3 shared benchmarks, Claude Opus 4.8 scores 9.83 higher.
Largest single-benchmark gap: SWE-Bench Pro - Public — Claude Opus 4.8 69.20 vs Gemini 3.1 Pro Preview 54.20 (+15).
Page generated from structured model, pricing and benchmark records. No real-time LLM is used to write the prose.