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Claude Opus 5vsQwen3.8-Flash-Next

Claude Opus 5 leads 1 of 1 shared benchmark. Both offer a 1M-token context window.

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
1 – 0
Claude Opus 5 leads
Cheaper per token
list price, input + output
Larger context
Tie
both 1M tokens
Provider uptime (30d)
100% · —
Anthropic · Qwen
Claude Opus 5
Anthropic · released 2026-07-24
textvision
Context
1M
Max out
128K
Input /1M
$5
Output /1M
$25
Cached /1M
$0.5
Scores
9 · 6 core
textvision
Context
1M
Max out
Input /1M
Output /1M
Cached /1M
Scores
13 · 4 core
Quality

Benchmark matrix

BenchmarkClaude Opus 5Qwen3.8-Flash-NextΔEdge
Reported by both · 1
GPQA Diamond93.9% epoch91.7% +2.2 ptClaude Opus 5
Only Claude Opus 5 reports · 8
Humanity's Last Exam (no tools)56.6% not reported
CursorBench 3.2.070% not reported
FrontierMath Tier 4 v2 (Epoch AI run)73.2% epochnot reported
FrontierMath Tiers 1-3 v2 (Epoch AI run)85.6% epochnot reported
GDPval-AA v21824 not reported
OTIS Mock AIME 2024-2025 (Epoch AI run)98.9% epochnot reported
SimpleQA Verified59.9% epochnot reported
Terminal-Bench Science 0.129% not reported
Only Qwen3.8-Flash-Next reports · 12
Agents' Last Exam Pass@1not reported24.3%
Agents' Last Exam Scorenot reported51.2
CoWorkBenchnot reported73.9%
DeepSWE 1.1not reported58.7%
Humanity's Last Examnot reported35.9%
IFBenchnot reported81.3%
JobBenchnot reported55.7%
LiveCodeBench v6not reported91.9%
NL2Repo-Benchnot reported48.1%
SWE-bench Multilingualnot reported81%
SWE-bench Pronot reported62.5%
Toolathlon Verifiednot reported73.5%
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 5 minus Qwen3.8-Flash-Next 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 5Qwen3.8-Flash-NextEdge
Context window1M tokens1M tokensTie
Max output128K tokens
Input price / 1M$5
Output price / 1M$25
Cached input / 1M$0.5
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$30
Modalitiestext · visiontext · visionTie
Released2026-07-24
Cited benchmark scores913
Reliability

Provider status

All providers
More matchups

Claude Opus 5 vs …

More matchups

Qwen3.8-Flash-Next vs …

Built by Respan
Which one wins on your data?

Public benchmarks are a starting point. Run Claude Opus 5 and Qwen3.8-Flash-Next on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.