Model comparison
GPT-5.5 Pro vs Laguna M.1
Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: GPT-5.5 Pro #42 (Estimated); Laguna M.1 unranked (Not scored). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. GPT-5.5 Pro and Laguna M.1 share 0 comparable benchmark results. 1 of 8 categories are comparable. 7 results are unique to GPT-5.5 Pro; 5 to Laguna M.1.
Updated July 27, 2026- Shared results
- 0
- GPT-5.5 Pro only
- 7
- Laguna M.1 only
- 5
- Comparable categories
- 1 / 8
Treat this as a split decision. GPT-5.5 Pro makes more sense if agentic is the priority or you need the larger 1M context window; Laguna M.1 is the better fit if its strengths line up with your actual workload.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
GPT-5.5 Pro and Laguna M.1 finish on the same BenchAlign overall score, so this is less about a single winner and more about where the edge shows up. The BenchAlign headline says tie; the benchmark table is where the real choice happens.
GPT-5.5 Pro gives you the larger context window at 1M, compared with 256K for Laguna M.1.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | GPT-5.5 Pro | Laguna M.1 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | GPT-5.5 Pro$30 input / $180 output | Laguna M.1Not available | A complete price comparison is not available. |
| Generation speedtokens per second | GPT-5.5 ProNot available | Laguna M.1Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | GPT-5.5 ProNot available | Laguna M.1Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | GPT-5.5 Pro1M | Laguna M.1256K | GPT-5.5 Pro lists the larger context window. |
Benchmark Deep Dive
AgenticGPT-5.5 Pro wins2 benchmarks
Coding4 benchmarks
Reasoning1 benchmarks
| Benchmark | GPT-5.5 Pro | Laguna M.1 | Result |
|---|---|---|---|
| CritPtSource | 30.6% | — | Not comparable |
Knowledge2 benchmarks
Frequently Asked Questions (2)
Which is better, GPT-5.5 Pro or Laguna M.1?
GPT-5.5 Pro and Laguna M.1 are tied on the BenchAlign overall score, so the right pick depends on which category matters most for your use case.
Which is better for agentic tasks, GPT-5.5 Pro or Laguna M.1?
GPT-5.5 Pro has the edge for agentic tasks in this comparison, averaging 90.1 versus 45.8. Laguna M.1 stays close enough that the answer can still flip depending on your workload.
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The model to choose, the cheaper alternative, and the release we would wait on.
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