GPT-5.5-Cyber vs Mistral Large 2
GPT-5.5-Cyber (2026) and Mistral Large 2 (2025) are frontier reasoning models from OpenAI and MistralAI. GPT-5.5-Cyber ships a not-yet-sourced context window, while Mistral Large 2 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-Cyber is safer overall; choose Mistral Large 2 when vision-heavy evaluation matters.
Decision scorecard
Local evidence first| Signal | GPT-5.5-Cyber | Mistral Large 2 |
|---|---|---|
| Best for | reasoning-heavy apps and multimodal apps | multimodal apps, tool-calling agents, and provider-routed production |
| Decision fit | Vision | Coding, RAG, and Agents |
| Context window | — | 128k |
| Cheapest output | - | $2.40/1M tokens |
| Provider routes | 0 tracked | 3 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- GPT-5.5-Cyber uniquely exposes Reasoning in local model data.
- Local decision data tags GPT-5.5-Cyber for Vision.
- Mistral Large 2 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Mistral Large 2 has broader tracked provider coverage for fallback and route flexibility.
- Mistral Large 2 uniquely exposes JSON / Tool use and Structured outputs in local model data.
- Local decision data tags Mistral Large 2 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.
GPT-5.5-Cyber
Unavailable
No complete token price in local provider data
Mistral Large 2
$984
Cheapest tracked route/tier: AWS Bedrock
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-Cyber and Mistral Large 2; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Reasoning before moving production traffic.
- Mistral Large 2 adds JSON / JSON / Tool use and Structured outputs in local capability data.
- No overlapping tracked provider route is sourced for Mistral Large 2 and GPT-5.5-Cyber; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for JSON / JSON / Tool use and Structured outputs before moving production traffic.
- GPT-5.5-Cyber adds Reasoning in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-30 | 2025-11-25 |
| Context window | — | 128k |
| Parameters | — | 123B |
| Architecture | Decoder Only | Decoder Only |
| License | Proprietary | Mistral License |
| Openness | Proprietary | Open weights |
| Weights | Not released | Unknown |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: non-commercial |
| Knowledge cutoff | 2025-12 | 2025-07 |
Pricing and availability
| Pricing attribute | GPT-5.5-Cyber | Mistral Large 2 |
|---|---|---|
| Input price | - | $0.48/1M tokens |
| Output price | - | $2.40/1M tokens |
| Providers | - |
Capabilities
| Capability | GPT-5.5-Cyber | Mistral Large 2 |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | Yes | No |
| 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
No shared benchmark scores are currently available for this pair.
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Last reviewed: 2026-06-29. Data sourced from public model cards and provider documentation.