$ diff gpt-image-2-5-flare grok-4-6
GPT-Image-2.5 Flare vs Grok 4.6
Values come from GPT-Image-2.5 Flare and Grok 4.6, 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
- 500K
- weights
- closed
- $/M in
- $2
- $/M out
- $6
What actually differs
- Input price
- Grok 4.6 at $2/M against $30/M — 15.0× 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 $6/M — 3.0× 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 32 days after Grok 4.6 (2026-09-08 vs 2026-08-07).
Full spec
| Attribute | GPT-Image-2.5 Flare | Grok 4.6 |
|---|---|---|
| Developer | OpenAI | xAI |
| Released | 2026-09-08 | 2026-08-07 |
| Context window | not recorded | 500,000 tokens |
| 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) | $2/M input · $6/M output; a request reaching 200K tokens re-prices in full at $4.00/M input · $1.00/M cached input · $12.00/M output |
| License | proprietary | proprietary |
| Availability | OpenAI API | API |