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Claude Opus 4.6vsGPT-5

Claude Opus 4.6 leads 6 of 7 shared benchmarks. GPT-5 is 2.7x cheaper per token. Claude Opus 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
6 – 1
Claude Opus 4.6 leads
Cheaper per token
GPT-5
2.7x cheaper, input + output
Larger context
Claude Opus 4.6
1M tokens
Provider uptime (30d)
100% · 95.0311%
Anthropic · OpenAI
Claude Opus 4.6
Anthropic · released 2026-02-05
textvision
Context
1M
Max out
128K
Input /1M
$5
Output /1M
$25
Cached /1M
$0.5
Scores
19 · 9 core
GPT-5
OpenAI · released 2025-08-07
textvision
Context
400K
Max out
128K
Input /1M
$1.25
Output /1M
$10
Cached /1M
$0.125
Scores
9 · 8 core
Quality

Benchmark matrix

BenchmarkClaude Opus 4.6GPT-5ΔEdge
Reported by both · 7
SWE-bench Verified80.8% 74.9% +5.9 ptClaude Opus 4.6
GPQA Diamond91.3% 86.2% epoch+5.1 ptClaude Opus 4.6
FrontierMath Tier 4 v2 (Epoch AI run)26.8% epoch22% epoch+4.8 ptClaude Opus 4.6
FrontierMath Tiers 1-3 v2 (Epoch AI run)66% epoch55.4% epoch+10.6 ptClaude Opus 4.6
OTIS Mock AIME 2024-2025 (Epoch AI run)94.4% epoch91.4% epoch+3 ptClaude Opus 4.6
SimpleQA Verified47% epoch50.1% epoch-3.1 ptGPT-5
SWE-bench Verified (Epoch AI run)78.7% epoch73.6% epoch+5.1 ptClaude Opus 4.6
Only Claude Opus 4.6 reports · 11
AIME 202696.7% matharenanot reported
LMArena Elo1497.5 not reported
ARC-AGI-2 (Verified)68.8% not reported
MCP Atlas59.5% not reported
MMMLU91.1% not reported
MMMU-Pro (no tools)73.9% not reported
MMMU-Pro (with tools)77.3% not reported
OSWorld-Verified72.7% not reported
Tau2-bench Retail91.9% not reported
Tau2-bench Telecom99.3% not reported
Terminal-Bench 2.065.4% not reported
Only GPT-5 reports · 1
AIME 2025not reported94.6%
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 Opus 4.6 minus GPT-5 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 Opus 4.6GPT-5Edge
Context window1M tokens400K tokensClaude Opus 4.6
Max output128K tokens128K tokensTie
Input price / 1M$5 $1.25 GPT-5
Output price / 1M$25 $10 GPT-5
Cached input / 1M$0.5 $0.125 GPT-5
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$30$11.25GPT-5
Modalitiestext · visiontext · visionTie
Released2026-02-052025-08-07
Cited benchmark scores199
Reliability

Provider status

All providers
More matchups

Claude Opus 4.6 vs …

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