GPT-5.5 Instant vs Qwen2.5-72B
GPT-5.5 Instant (2026) and Qwen2.5-72B (2025) are compact production models from OpenAI and Alibaba. GPT-5.5 Instant ships a 400k-token context window, while Qwen2.5-72B ships a 128k-token context window. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads. It focuses on practical selection signals rather than broad model-family marketing.
GPT-5.5 Instant is safer overall; choose Qwen2.5-72B when provider fit matters.
Decision scorecard
Local evidence first| Signal | GPT-5.5 Instant | Qwen2.5-72B |
|---|---|---|
| Best for | multimodal apps and tool-calling agents | tool-calling agents |
| Decision fit | Coding, RAG, and Agents | RAG, Agents, and Long context |
| Context window | 400k | 128k |
| Cheapest output | $30/1M tokens | - |
| Provider routes | 1 tracked | 0 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- GPT-5.5 Instant has the larger context window for long prompts, retrieval packs, or transcript analysis.
- GPT-5.5 Instant has broader tracked provider coverage for fallback and route flexibility.
- GPT-5.5 Instant uniquely exposes Vision, Multimodal, and Structured outputs in local model data.
- Local decision data tags GPT-5.5 Instant for Coding, RAG, and Agents.
- Local decision data tags Qwen2.5-72B for RAG, Agents, and Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
GPT-5.5 Instant
$11,500
Cheapest tracked route/tier: OpenAI API
Qwen2.5-72B
Unavailable
No complete token price in local provider data
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for GPT-5.5 Instant and Qwen2.5-72B; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Vision, Multimodal, and Structured outputs before moving production traffic.
- No overlapping tracked provider route is sourced for Qwen2.5-72B and GPT-5.5 Instant; plan for SDK, billing, or endpoint changes.
- GPT-5.5 Instant adds Vision, Multimodal, and Structured outputs in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-05-05 | 2025-10-10 |
| Context window | 400k | 128k |
| Parameters | — | 72B |
| Architecture | Decoder Only | - |
| 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 | 2025-08 | 2024-09 |
Pricing and availability
| Pricing attribute | GPT-5.5 Instant | Qwen2.5-72B |
|---|---|---|
| Input price | $5/1M tokens | - |
| Output price | $30/1M tokens | - |
| Providers | - |
Capabilities
| Capability | GPT-5.5 Instant | Qwen2.5-72B |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | No |
| Reasoning | No | No |
| JSON / Tool use | Yes | Yes |
| Structured outputs | Yes | No |
| Code execution | Yes | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark scores are currently available for this pair.
Continue comparing
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Last reviewed: 2026-06-19. Data sourced from public model cards and provider documentation.