$ diff gpt-image-2-5-flare claude-fable-5-1
GPT-Image-2.5 Flare vs Claude Fable 5.1
Values come from GPT-Image-2.5 Flare and Claude Fable 5.1, 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
- $10
- $/M out
- $50
What actually differs
- Input price
- Claude Fable 5.1 at $10/M against $30/M — 3.0× cheaper to feed.
- Output price
- GPT-Image-2.5 Flare at $2/M against $50/M — 25.0× 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 7 days after Claude Fable 5.1 (2026-09-08 vs 2026-09-01).
Full spec
| Attribute | GPT-Image-2.5 Flare | Claude Fable 5.1 |
|---|---|---|
| Developer | OpenAI | Anthropic |
| Released | 2026-09-08 | 2026-09-01 |
| Context window | not recorded | 1M 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) | $10/M input · $50/M output · cache reads $0.25/M |
| License | proprietary | proprietary (API-only; no weight release) |
| Availability | OpenAI API | Claude API as `claude-fable-5-1`; plan-tier access is disputed — see `## Conflicting Reports` |