GPT Chat Latest Paid vs 
Claude Fable 5.1 (batch) Paid
GPT Chat Latest vs Claude Fable 5.1 (batch) compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
GPT Chat Latest — full profile › · Claude Fable 5.1 (batch) — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
$30 /M outputManaged API (no infra to run)
$25 /M outputManaged API (no infra to run)
GPT Chat Latest vs Claude Fable 5.1 (batch) specs
| Spec | GPT Chat Latest | Claude Fable 5.1 (batch) | Winner |
|---|---|---|---|
| Maker | OpenAI | Anthropic | – |
| Type | Proprietary | Proprietary | – |
| Context window | 400K tokens | 1M tokens | |
| Input price | $5/M | $5/M | = Tie |
| Output price | $30/M | $25/M | |
| Vision / multimodal | Yes | Yes | = Tie |
| Tool / function calling | Yes | Yes | = Tie |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Price gap & when to choose each
- You want frontier performance through a managed API
- You value reliability & ecosystem
- You don't want to manage infrastructure
- You want frontier performance through a managed API
- You need the longer 1M context window
- You want the lower output price
- You value reliability & ecosystem
- You don't want to manage infrastructure
Feature comparison
| Capability | GPT Chat Latest | Claude Fable 5.1 (batch) |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✗ | ✓ |
Benchmarks: GPT Chat Latest vs Claude Fable 5.1 (batch)
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How GPT Chat Latest and Claude Fable 5.1 (batch) score
| Criterion | GPT Chat Latest | Claude Fable 5.1 (batch) |
|---|---|---|
| Cost-efficiency | 3.0 | 3.0 |
| Context window | 4.5 | 5.0 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 5.0 | 5.0 |
Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.
What each model is
GPT Chat Latest Paid
GPT Chat Latest points to OpenAI's stable API alias `chat-latest` that always resolves to the latest Instant chat model used in ChatGPT. As OpenAI rolls out new Instant model updates...
Claude Fable 5.1 (batch) Paid
Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...
Frequently asked questions
GPT Chat Latest vs Claude Fable 5.1 (batch) — which is cheaper?
Claude Fable 5.1 (batch) is cheaper on output ($25/M vs $30/M).
Which has the larger context window?
Claude Fable 5.1 (batch) offers the larger context window (1M tokens).
GPT Chat Latest vs Claude Fable 5.1 (batch) — which should I pick in 2026?
Choose Claude Fable 5.1 (batch) for the lower output price ($25/M vs $30/M). It also gives you the larger 1M context window.
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