$ diff gpt-image-2-5-flare muse-spark-1-3
GPT-Image-2.5 Flare vs Muse Spark 1.3
Values come from GPT-Image-2.5 Flare and Muse Spark 1.3, where each is cited to its source. This page states no benchmark result and ranks neither model — it puts two published specifications next to each other. Where a lab has not published a figure, the row says so rather than guessing.
OpenAIGPT-Image-2.5 Flare
- context
- —
- weights
- closed
- $/M in
- $30
- $/M out
- $2
- context
- 1M
- weights
- closed
- $/M in
- $1.25
- $/M out
- $4.25
What actually differs
- Input price
- Muse Spark 1.3 at $1.25/M against $30/M — 24.0× cheaper to feed. Standard rates: one of these labs also quotes a lower cached-input tier, which applies only when a prefix is reused — see the full spec below.
- Output price
- GPT-Image-2.5 Flare at $2/M against $4.25/M — 2.1× cheaper to generate. Output dominates the bill on most agentic workloads, where the model writes far more than it reads.
- Recency
- GPT-Image-2.5 Flare shipped 6 days after Muse Spark 1.3 (2026-09-08 vs 2026-09-02).
Full spec
| Attribute | GPT-Image-2.5 Flare | Muse Spark 1.3 |
|---|---|---|
| Developer | OpenAI | Meta AI |
| Released | 2026-09-08 | 2026-09-02 |
| Context window | not recorded | 1,000,000 |
| Pricing | image input $8.00/M tokens ($2.00/M cached) · image output $30.00/M tokens · text input $5.00/M tokens ($1.25/M cached) | Standard $1.25/M input · $4.25/M output · Contributor ≈$0.10/M input · ≈$0.20/M output |
| License | proprietary | proprietary |
| Availability | OpenAI API | Muse Code, Meta Model API |