GPT Chat Latest vs Sakana Namazu compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
GPT Chat Latest — full profile › · Sakana Namazu — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
| Spec | GPT Chat Latest | Sakana Namazu | Winner |
|---|---|---|---|
| Maker | OpenAI | Sakana AI | – |
| Type | Proprietary | Proprietary | – |
| Context window | 400K tokens | 262K tokens | |
| Input price | $5/M | $0.95/M | SASakana Namazu |
| Output price | $30/M | $4/M | SASakana Namazu |
| Vision / multimodal | Yes | Yes | = Tie |
| Tool / function calling | Yes | Yes | = Tie |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Sakana Namazu is ~7.5× cheaper than GPT Chat Latest on output tokens ($4 vs $30 per M tokens).
| Capability | GPT Chat Latest | Sakana Namazu |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✗ | ✗ |
| Criterion | GPT Chat Latest | Sakana Namazu |
|---|---|---|
| Cost-efficiency | 3.0 | 4.0 |
| Context window | 4.5 | 4.0 |
| 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.
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...
Sakana Namazu is a Japanese-specialized reasoning model from Sakana AI, based on Kimi K2.6 with additional training for Japanese language and business contexts. It is suited for Japanese instruction following,...
Sakana Namazu is cheaper on output ($4/M vs $30/M).
GPT Chat Latest offers the larger context window (400K tokens).
Choose Sakana Namazu for the lower output price ($4/M vs $30/M). Choose GPT Chat Latest if you need the larger 400K context window.
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