Claude Opus 4.7 vs Qwen3.5-397B-A17B
Claude Opus 4.7 (2026) and Qwen3.5-397B-A17B (2026) are frontier-tier reasoning models from Anthropic and Alibaba. Claude Opus 4.7 ships a 1m-token context window, while Qwen3.5-397B-A17B ships a 262k-token context window. On SWE-bench Verified, Claude Opus 4.7 leads by 11.4 pts. On pricing, Qwen3.5-397B-A17B costs $0.39/1M input tokens versus $5/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Qwen3.5-397B-A17B is ~1182% cheaper at $0.39/1M; pay for Claude Opus 4.7 only for coding workflow support.
Decision scorecard
Local evidence first| Signal | Claude Opus 4.7 | Qwen3.5-397B-A17B |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | reasoning-heavy apps, multimodal apps, and tool-calling agents |
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Agents |
| Context window | 1m | 262k |
| Cheapest output | $25/1M tokens | $2.34/1M tokens |
| Provider routes | 6 tracked | 4 tracked |
| Shared benchmarks | SWE-bench Verified leader | 5 shared |
Decision tradeoffs
- Claude Opus 4.7 holds a shared-benchmark lead on SWE-bench Verified, ahead by 11.4 points.
- Claude Opus 4.7 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Claude Opus 4.7 has broader tracked provider coverage for fallback and route flexibility.
- Claude Opus 4.7 uniquely exposes Code execution in local model data.
- Local decision data tags Claude Opus 4.7 for Coding, RAG, and Agents.
- Qwen3.5-397B-A17B holds a shared-benchmark lead on MultiChallenge, ahead by 9.0 points.
- Qwen3.5-397B-A17B has the lower cheapest tracked output price at $2.34/1M tokens.
- Local decision data tags Qwen3.5-397B-A17B for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Claude Opus 4.7
$10,250
Cheapest tracked route/tier: Anthropic
Qwen3.5-397B-A17B
$897
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $9,353. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Qwen3.5-397B-A17B is $22.66/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Code execution before moving production traffic.
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Claude Opus 4.7 is $22.66/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Claude Opus 4.7 adds Code execution in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-16 | 2026-02-16 |
| Context window | 1m | 262k |
| Parameters | — | 397B |
| Architecture | Decoder Only | Mixture of Experts |
| License | Proprietary | Apache 2.0OSI-approved |
| Openness | Proprietary | Open source |
| Weights | Not released | Available |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: permitted |
| Knowledge cutoff | 2026-01 | - |
Pricing and availability
| Pricing attribute | Claude Opus 4.7 | Qwen3.5-397B-A17B |
|---|---|---|
| Input price | $5/1M tokens | $0.39/1M tokens |
| Output price | $25/1M tokens | $2.34/1M tokens |
| Providers |
Capabilities
| Capability | Claude Opus 4.7 | Qwen3.5-397B-A17B |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | Yes | Yes |
| JSON / Tool use | Yes | Yes |
| Structured outputs | Yes | Yes |
| Code execution | Yes | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | Claude Opus 4.7 | Qwen3.5-397B-A17B |
|---|---|---|
| SWE-bench Verified | 87.6 | 76.2 |
| Google-Proof Q&A | 94.2 | 89.3 |
| Humanity's Last Exam | 54.7 | 28.7 |
| Terminal-Bench 2.0 | 69.4 | 52.5 |
| MultiChallenge | 58.6 | 67.6 |
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Last reviewed: 2026-07-26. Data sourced from public model cards and provider documentation.