Model comparison
Claude Opus 5 vs Qwen3.8-Max
Anthropic against Qwen, compared on context, price, and verified benchmark results.
Catalog record checked August 13, 2026; individual provider fields may change.
Anthropic
Claude Opus 5
Frontier
Qwen
Qwen3.8-Max
Frontier
| Specification | Claude Opus 5 | Qwen3.8-Max |
|---|---|---|
| Provider | Anthropic | Qwen |
| Tier | Frontier | Frontier |
| Context window | 1M | 1M |
| Max output | 128K | Winner: 131K |
| Input / 1M tokens | $5 | Winner: $2 |
| Output / 1M tokens | $25 | Winner: $6 |
| Weights | Closed | Closed |
| Parameters | Not disclosed | 2.4T total / ~95B active (MoE) |
| Reasoning levels | low, medium, high, xhigh, max | Not verified |
| Modalities | text, image | text, image, video |
| Released | July 24, 2026 | August 3, 2026 |
| Artificial Analysis Intelligence Index [max] (2026-08-14) | Winner: 63 | 58 |
Prices are USD per million tokens at standard rates, excluding batch and caching discounts. Bold indicates the better figure where one is objectively better. Values we could not confirm from the provider are shown as “Not verified” rather than estimated.
Claude Opus 5
Anthropic's frontier tier, and ahead of Fable 5 on both recorded benchmarks at half the price.
Best for
- Agentic coding
- Long-context analysis
- Multi-step engineering work
Watch out
Output tokens cost five times input — long generations dominate the bill.
Qwen3.8-Max
Alibaba's hosted Max-class API — 2.4T MoE with a 1M context window (max input 991,808), vision, and managed tools. Distinct from the Hugging Face Qwen3.8-2.4T-A95B checkpoint.
Best for
- Agentic coding
- Multimodal knowledge work
- Long-context delivery
Watch out
This row is the hosted Qwen3.8-Max API, not the downloadable checkpoint. The open-weight Qwen3.8-2.4T-A95B card is catalogued separately and does not include the API's vision, non-thinking, or built-in tool extras.
Benchmark
DeepSWE 1.1 in context
Both models shown against the wider field, with cost per completed task alongside the score.
Local leader
Claude Opus 5 [max]
74%
Rows shown
24
Highest published reasoning effort per model (not best Pass@1)
Snapshot date
2026-08-13
Mirrored from deepswe.datacurve.ai
Better is toward the top-right (higher pass rate, lower cost). X-axis is reversed to match DeepSWE’s public chart. v1.1 uses average cost / tokens / steps; v1 uses published medians.
| # | Model | Pass@1 | Cost / task | Tokens / task | Steps / task |
|---|---|---|---|---|---|
| 1 | Claude Opus 5 [max] | 74% | $11.84 | 118k | 99 |
| 2 | GPT-5.6 Sol [max] | 73% | $8.39 | 60k | 61 |
| 3 | Claude Fable 5 [max] | 70% | $21.63 | 119k | 88 |
| 4 | GPT-5.6 Terra [max] | 70% | $4.95 | 72k | 76 |
| 5 | Kimi K3 [max] | 69% | $4.65 | 82k | 98 |
| 6 | GPT-5.6 Luna [max] | 67% | $3.03 | 73k | 102 |
| 7 | GPT-5.5 [xhigh] | 67% | $7.23 | 46k | 82 |
| 8 | Grok 4.6 [xhigh] | 67% | $5.50 | 71k | 87 |
| 9 | Gemini 3.7 Flash [high] | 65% | $2.18 | 107k | 125 |
| 10 | DeepSeek V4-Pro [max] | 63% | $0.24 | 106k | 155 |
| 11 | Claude Opus 4.8 [max] | 59% | $13.22 | 135k | 120 |
| 12 | Qwen3.8-Max [xhigh] | 58% | $3.73 | 95k | 111 |
| 13 | Muse Spark 1.2 [xhigh] | 55% | $3.70 | 99k | 101 |
| 14 | Claude Sonnet 5 [max] | 54% | $26.40 | 214k | 268 |
| 15 | Grok 4.5 [high] | 54% | $2.42 | 36k | 61 |
| 16 | DeepSeek V4-Flash [max] | 53% | $0.10 | 108k | 153 |
| 17 | Muse Spark 1.1 [xhigh] | 53% | $2.36 | 74k | 96 |
| 18 | GPT-5.4 [xhigh] | 52% | $5.65 | 71k | 70 |
| 19 | Gemini 3.6 Flash [high] | 47% | $4.42 | 96k | 117 |
| 20 | GLM 5.2 [max] | 44% | $3.92 | 78k | 129 |
| 21 | Gemini 3.5 Flash [high] | 36% | $3.45 | 76k | 105 |
| 22 | Kimi K2.7 Code | 31% | $2.82 | 59k | 149 |
| 23 | Claude Sonnet 4.6 [high] | 30% | $5.52 | 76k | 134 |
| 24 | Gemini 3.1 Pro [high] | 12% | $2.14 | 28k | 76 |
DeepSWE “Best” picks the highest published reasoning effort per model (not the highest pass rate). Small gaps may not be statistically meaningful — confirm on deepswe.datacurve.ai.
Common questions
Claude Opus 5 vs Qwen3.8-Max
Answered from the verified figures on this page rather than general guidance.
Is Claude Opus 5 or Qwen3.8-Max cheaper for input?
Qwen3.8-Max is cheaper at $2 per million input tokens, against $5 for Claude Opus 5 — roughly 2.5× the price. Output tokens usually dominate a real bill, so weigh the output rate more heavily than the input rate.
Is Claude Opus 5 or Qwen3.8-Max cheaper for output?
Qwen3.8-Max is cheaper at $6 per million output tokens, against $25 for Claude Opus 5 — roughly 4.2× the price. Output tokens usually dominate a real bill, so weigh the output rate more heavily than the input rate.
Which has the larger context window, Claude Opus 5 or Qwen3.8-Max?
Both accept about 1M tokens of context, so document length will not decide between them.
Should I use Claude Opus 5 or Qwen3.8-Max?
Both sit in the frontier tier, so the choice usually comes down to price and context rather than capability. Claude Opus 5 suits agentic coding; Qwen3.8-Max suits agentic coding.
Next step
Choosing between them
Tier and workload decide this more reliably than a leaderboard position does.
If both sit in the same tier, the decision usually comes down to context window and output price rather than headline capability — output tokens dominate real bills.
If one is a step up within the same provider, the useful question is whether your hardest task actually fails on the cheaper tier. Most production volume — classification, extraction, summarization — does not.
Choosing a harness rather than a model — Cursor, Copilot, Claude Code, Muse Code, or Lovable? Compare agentic harnesses · Latest releases.