GPT Chat Latest vs Sakana Namazu
Sakana Namazu costs 7.5x less per output token than GPT Chat Latest ($4.00 vs $30.00 per million). Updated October 22, 2026; no benchmark has tested both models yet.
- Coding
- No data
- Overall
- No data
- Output $/M
- $30.00
- Coding
- No data
- Overall
- No data
- Output $/M
- $4.00
GPT Chat Latest or Sakana Namazu: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick GPT Chat Latest for a larger context window (400K against 262K tokens).
No benchmark has tested either model yet, so price and context are the only way to compare them.
Which one for your work
Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Neither has a coding score yet.
One side not measured
Long documents
Listed context window
GPT Chat Latest
GPT Chat Latest takes 400K tokens against 262K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Sakana Namazu
GPT Chat Latest $0.020, Sakana Namazu $0.0029 per turn.
List prices
At a glance
- Coding index
- GPT Chat Latest not benchmarked, Sakana Namazu not benchmarked.
- Widest category
- None yet: no category has been tested on both models.
- Widest single gap
- None yet: no benchmark has tested both models.
- Output price
- GPT Chat Latest $30.00 against Sakana Namazu $4.00 per million output tokens, 7.5x apart.
- Context window
- GPT Chat Latest takes 400K tokens, Sakana Namazu 262K.
Benchmark by benchmark
Every board either model has a result on, a category to a fold; bars are each result on a 0 to 100 scale. Only one model is measured on each, so no row names a leader.
What each workload costs
Three fixed token mixes at each model's listed price, so per-token rates become a bill.
Chat turn
1K input + 500 output tokens
Sakana Namazu costs less
Repository review
50K input + 3K output tokens
Sakana Namazu costs less
Agent loop
200K input + 10K output tokens
Sakana Namazu costs less
Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.
Specification differences
The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.
| Specification | OpenAI GPT Chat Latest | Sakana Namazu |
|---|---|---|
| Maker | OpenAI | Sakana |
| Weights | No public weights listed | No public weights listed |
| Released | May 5, 2026 | August 11, 2026 |
| Context window | 400K | 262K |
| Input $/Mtok | $5.00 | $0.95 |
| Output $/Mtok | $30.00 | $4.00 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 0 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is GPT Chat Latest better than Sakana Namazu for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick GPT Chat Latest for a larger context window (400K against 262K tokens).
Which is cheaper, GPT Chat Latest or Sakana Namazu?
GPT Chat Latest costs $5.00 per million input tokens and $30.00 per million output tokens; Sakana Namazu costs $0.95 and $4.00. Cost per solved task is known for neither of them.
Which has the bigger context window, GPT Chat Latest or Sakana Namazu?
GPT Chat Latest, with 400K tokens against 262K.
Has any benchmark tested both GPT Chat Latest and Sakana Namazu?
No benchmark has tested either model yet, so price and context are the only way to compare them. Data as of October 22, 2026.