# GPT-5.1-Codex-Max vs MAI-Voice-2-Flash

> Side-by-side benchmark comparison for GPT-5.1-Codex-Max and MAI-Voice-2-Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-1-codex-max-vs-mai-voice-2-flash
- Last updated: September 10, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for GPT-5.1-Codex-Max and MAI-Voice-2-Flash.

## Summary

- GPT-5.1-Codex-Max and MAI-Voice-2-Flash do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | GPT-5.1-Codex-Max | MAI-Voice-2-Flash |
|----------|----------|----------|
| Creator | OpenAI | Microsoft |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 400K | N/A |
| Independent public score (not head-to-head) | 52.21 | null |
| Benchmarks Covered | 1 | 0 |
| Pricing (input/output) | $1.25 / $10.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Coding

- Winner: Insufficient shared evidence
- GPT-5.1-Codex-Max public-lane score: Coming soon
- MAI-Voice-2-Flash public-lane score: Coming soon

| Benchmark | GPT-5.1-Codex-Max | MAI-Voice-2-Flash | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 22.17% | Coming soon | Coming soon |

## FAQ

### Can I compare GPT-5.1-Codex-Max and MAI-Voice-2-Flash on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [GPT-5.1-Codex-Max vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-gpt-5-1-codex-max)
- [MAI-Voice-2-Flash vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-mai-voice-2-flash)
- [GPT-5.1-Codex-Max vs GPT-6 Astra](/compare/gpt-5-1-codex-max-vs-gpt-6-astra)
- [MAI-Voice-2-Flash vs GPT-6 Astra](/compare/gpt-6-astra-vs-mai-voice-2-flash)

## Explore More

- [GPT-5.1-Codex-Max profile](/models/gpt-5-1-codex-max)
- [MAI-Voice-2-Flash profile](/models/mai-voice-2-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)