Phi 3.5 Vision Instruct vs Qwen3.5-397B-A17B
Phi 3.5 Vision Instruct (2024) and Qwen3.5-397B-A17B (2026) are frontier reasoning models from Microsoft Research and Alibaba. Phi 3.5 Vision Instruct ships a 128k-token context window, while Qwen3.5-397B-A17B ships a 262k-token context window. On Massive Multi-discipline Multimodal Understanding, Qwen3.5-397B-A17B leads by 42 pts. 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 safer overall; choose Phi 3.5 Vision Instruct when vision-heavy evaluation matters.
Decision scorecard
Local evidence first| Signal | Phi 3.5 Vision Instruct | Qwen3.5-397B-A17B |
|---|---|---|
| Best for | multimodal apps | reasoning-heavy apps, multimodal apps, and tool-calling agents |
| Decision fit | Long context and Vision | Coding, RAG, and Agents |
| Context window | 128k | 262k |
| Cheapest output | - | $2.34/1M tokens |
| Provider routes | 0 tracked | 4 tracked |
| Shared benchmarks | 1 shared | Massive Multi-discipline Multimodal Understanding leader |
Decision tradeoffs
- Local decision data tags Phi 3.5 Vision Instruct for Long context and Vision.
- Qwen3.5-397B-A17B holds a shared-benchmark lead on Massive Multi-discipline Multimodal Understanding, ahead by 42 points.
- Qwen3.5-397B-A17B has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Qwen3.5-397B-A17B has broader tracked provider coverage for fallback and route flexibility.
- Qwen3.5-397B-A17B uniquely exposes Reasoning, JSON / Tool use, and Structured outputs in local model data.
- 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.
Phi 3.5 Vision Instruct
Unavailable
No complete token price in local provider data
Qwen3.5-397B-A17B
$897
Cheapest tracked route/tier: OpenRouter
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Phi 3.5 Vision Instruct and Qwen3.5-397B-A17B; plan for SDK, billing, or endpoint changes.
- Qwen3.5-397B-A17B adds Reasoning, JSON / Tool use, and Structured outputs in local capability data.
- No overlapping tracked provider route is sourced for Qwen3.5-397B-A17B and Phi 3.5 Vision Instruct; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Reasoning, JSON / Tool use, and Structured outputs before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-08-20 | 2026-02-16 |
| Context window | 128k | 262k |
| Parameters | 4.1B | 397B |
| Architecture | Decoder Only | Mixture of Experts |
| License | MITOSI-approved | Apache 2.0OSI-approved |
| Openness | Open source | Open source |
| Weights | Unknown | Available |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: permitted | Commercial use: permitted |
| Knowledge cutoff | 2023-10 | - |
Pricing and availability
| Pricing attribute | Phi 3.5 Vision Instruct | Qwen3.5-397B-A17B |
|---|---|---|
| Input price | - | $0.39/1M tokens |
| Output price | - | $2.34/1M tokens |
| Providers | - |
Capabilities
| Capability | Phi 3.5 Vision Instruct | Qwen3.5-397B-A17B |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | No | Yes |
| JSON / Tool use | No | Yes |
| Structured outputs | No | Yes |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | Phi 3.5 Vision Instruct | Qwen3.5-397B-A17B |
|---|---|---|
| Massive Multi-discipline Multimodal Understanding | 43.0 | 85.0 |
Continue comparing
Popular comparisons for Phi 3.5 Vision Instruct
Popular comparisons for Qwen3.5-397B-A17B
Last reviewed: 2026-06-29. Data sourced from public model cards and provider documentation.