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GPT-6 Rosalind vs SWE-2 Flash

Comparing GPT-6 Rosalind and SWE-2 Flash across benchmarks, pricing, and capabilities.

OpenAI · Cognition · Updated for 2026

Which is better?

GPT-6 Rosalind and SWE-2 Flash trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose GPT-6 Rosalind

  • you want predictable pricing at $15.00/M input and $75.00/M output

Choose SWE-2 Flash

  • you want the most recent training data — it shipped Nov 2026

At a glance

The differences that matter most.

GPT-6 Rosalind
OpenAI
SWE-2 Flash
Cognition
Benchmark wins
—
—
Input price
$15.00 / M
— / M
Output price
$75.00 / M
— / M
Context window
—
—

Individual benchmarks

0 reported for GPT-6 Rosalind · 7 for SWE-2 Flash

No common benchmarks found

GPT-6 Rosalind and SWE-2 Flashdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Input capabilities

Documented input modalities across available providers

GPT-6 Rosalind supports multimodal inputs, whereas SWE-2 Flash does not.

GPT-6 Rosalind can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-6 Rosalind

Text
Images
Audio
Video

SWE-2 Flash

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

GPT-6 Rosalind

Proprietary

Closed source

SWE-2 Flash

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-6 Rosalind was released on 2026-10-30, while SWE-2 Flash was released on 2026-11-04.

SWE-2 Flash is 0 month newer than GPT-6 Rosalind.

GPT-6 Rosalind

Oct 30, 2026

1 weeks ago

SWE-2 Flash

Nov 4, 2026

1 weeks ago

5d newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against GPT-6 Rosalind and SWE-2 Flash side-by-side, then vote on the output you prefer.

GPT-6 Rosalind
✓ Preferred
SWE-2 Flash
Open in Playground

FAQ

Common questions about GPT-6 Rosalind vs SWE-2 Flash.

Which is better, GPT-6 Rosalind or SWE-2 Flash?

GPT-6 Rosalind (OpenAI) and SWE-2 Flash (Cognition) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does GPT-6 Rosalind compare to SWE-2 Flash in benchmarks?

SWE-2 Flash scores Terminal-Bench 2.1: 89.2%, DeepSWE 1.1: 60.1%, SWE Atlas - Codebase QnA: 50.0%, FrontierCode 1.1: 45.5%, ExploitBench: 34.8%.

What are the main differences between GPT-6 Rosalind and SWE-2 Flash?

Key differences include multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-6 Rosalind and SWE-2 Flash?

GPT-6 Rosalind is developed by OpenAI and SWE-2 Flash is developed by Cognition.

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