GPT Chat Latest vs Weaver (alpha)
Updated October 21, 2026. 0 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.
- Coding
- No data
- Overall
- No data
- Output $/M
- $30.00
- Coding
- No data
- Overall
- No data
- Output $/M
- $0.75
Decision reading
Neither model has a coding score yet, so the two cannot be ranked on coding.
GPT Chat Latest has the edge where the context window is larger, 400K against 8K tokens.
- Shared results
- 0
- GPT Chat Latest only
- 0
- Weaver (alpha) only
- 0
- Like-for-like categories
- 0 of 9
Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.
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 8K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Weaver (alpha)
GPT Chat Latest $0.020, Weaver (alpha) $0.0008 per turn.
List prices
At a glance
- Coding index
- GPT Chat Latest not benchmarked, Weaver (alpha) not benchmarked.
- Widest category
- No category has a result for both models.
- Widest single gap
- No benchmark has a result for both models.
- Output price
- GPT Chat Latest $30.00 against Weaver (alpha) $0.75 per million output tokens, 40.0x apart.
- Context window
- GPT Chat Latest takes 400K tokens, Weaver (alpha) 8K.
Benchmark by benchmark
First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.
CodingNot comparableSix of these boards feed the Vibe Coding Index0 boards, none shared
| Benchmark | GPT Chat Latest | Weaver (alpha) | Leader |
|---|---|---|---|
| Neither model has a result on 38 boards here | |||
IntelligenceNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | GPT Chat Latest | Weaver (alpha) | Leader |
|---|---|---|---|
| Neither model has a result on 2 boards here | |||
Agentic workNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | GPT Chat Latest | Weaver (alpha) | Leader |
|---|---|---|---|
| Neither model has a result on 39 boards here | |||
ReasoningNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | GPT Chat Latest | Weaver (alpha) | Leader |
|---|---|---|---|
| Neither model has a result on 21 boards here | |||
MathNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | GPT Chat Latest | Weaver (alpha) | Leader |
|---|---|---|---|
| Neither model has a result on 13 boards here | |||
KnowledgeNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | GPT Chat Latest | Weaver (alpha) | Leader |
|---|---|---|---|
| Neither model has a result on 17 boards here | |||
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | GPT Chat Latest | Weaver (alpha) | Leader |
|---|---|---|---|
| Neither model has a result on 9 boards here | |||
GeneralNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | GPT Chat Latest | Weaver (alpha) | Leader |
|---|---|---|---|
| Neither model has a result on 46 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | GPT Chat Latest | Weaver (alpha) | Leader |
|---|---|---|---|
| Neither model has a result on 5 boards here | |||
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
Weaver (alpha) costs less
Repository review
50K input + 3K output tokens
Weaver (alpha) costs less
Agent loop
200K input + 10K output tokens
Weaver (alpha) 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 | Mancer Weaver (alpha) |
|---|---|---|
| Maker | OpenAI | Mancer |
| Weights | No public weights listed | No public weights listed |
| Released | May 5, 2026 | August 2, 2023 |
| Context window | 400K | 8K |
| Input $/Mtok | $5.00 | $0.40 |
| Output $/Mtok | $30.00 | $0.75 |
| 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 Weaver (alpha) for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. GPT Chat Latest has the edge where the context window is larger, 400K against 8K tokens.
Which is cheaper, GPT Chat Latest or Weaver (alpha)?
GPT Chat Latest costs $5.00 per million input tokens and $30.00 per million output tokens; Weaver (alpha) costs $0.40 and $0.75. Cost per solved task is known for neither of them.
Which has the bigger context window, GPT Chat Latest or Weaver (alpha)?
GPT Chat Latest, with 400K tokens against 8K.
How many benchmarks is the GPT Chat Latest vs Weaver (alpha) comparison based on?
0 benchmarks have a result for both models as of October 21, 2026. GPT Chat Latest's coding index rests on 0 independent benchmarks and Weaver (alpha)'s on 0. Where only one model has a result, the page says so instead of naming a winner.