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Claude 3.7 SonnetvsGemini 3.1 Pro Preview

Gemini 3.1 Pro Preview leads 2 of 2 shared benchmarks. Gemini 3.1 Pro Preview is 1.3x cheaper per token. Gemini 3.1 Pro Preview 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 – 2
Gemini 3.1 Pro Preview leads
Cheaper per token
Gemini 3.1 Pro Preview
1.3x cheaper, input + output
Larger context
Gemini 3.1 Pro Preview
1.0M tokens
Provider uptime (30d)
100% · 100%
Anthropic · Google
Claude 3.7 Sonnet
Anthropic · released 2025-02-24
textvision
Context
200K
Max out
128K
Input /1M
$3
Output /1M
$15
Cached /1M
$0.3
Scores
5 · 5 core
Gemini 3.1 Pro Preview
Google · released 2026-02-19
textvisionaudio
Context
1.0M
Max out
66K
Input /1M
$2
Output /1M
$12
Cached /1M
$0.2
Scores
10 · 8 core
Quality

Benchmark matrix

BenchmarkClaude 3.7 SonnetGemini 3.1 Pro PreviewΔEdge
Reported by both · 2
GPQA Diamond79.7% epoch94.3% -14.6 ptGemini 3.1 Pro Preview
OTIS Mock AIME 2024-2025 (Epoch AI run)57.8% epoch95.6% epoch-37.8 ptGemini 3.1 Pro Preview
Only Claude 3.7 Sonnet reports · 3
SWE-bench Verified70.3% not reported
AIME 202549.2% matharenanot reported
SWE-bench Verified (Epoch AI run)61% epochnot reported
Only Gemini 3.1 Pro Preview reports · 7
AIME 2026not reported98.3% matharena
LMArena Elonot reported1480.1
ARC-AGI-2not reported77.1%
FrontierMath Tier 4 v2 (Epoch AI run)not reported26.8% epoch
FrontierMath Tiers 1-3 v2 (Epoch AI run)not reported59.6% epoch
SimpleQA Verifiednot reported73.5% epoch
SWE-Bench Pronot reported54.2%
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 3.7 Sonnet minus Gemini 3.1 Pro Preview 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

SpecClaude 3.7 SonnetGemini 3.1 Pro PreviewEdge
Context window200K tokens1.0M tokensGemini 3.1 Pro Preview
Max output128K tokens66K tokensClaude 3.7 Sonnet
Input price / 1M$3 $2 Gemini 3.1 Pro Preview
Output price / 1M$15 $12 Gemini 3.1 Pro Preview
Cached input / 1M$0.3 $0.2 Gemini 3.1 Pro Preview
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$18$14Gemini 3.1 Pro Preview
Modalitiestext · visiontext · vision · audioGemini 3.1 Pro Preview
Released2025-02-242026-02-19
Cited benchmark scores510
Reliability

Provider status

All providers
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Which one wins on your data?

Public benchmarks are a starting point. Run Claude 3.7 Sonnet and Gemini 3.1 Pro Preview on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.