Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
One change · api

task-budgets changed

build-with-claude/task-budgets

Nearest release: v2.1.280, published under an hour before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Recorded here
Lines+19added
Lines−17removed
From line 10 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits8to this page, all time

The whole hunk

from line 10, old and new numbered
/
lines
from line 10
1010 - claude-mythos-5-1
1111 - claude-fable-5
1212 - claude-mythos-5
13 - claude-opus-5-5
1314 - claude-opus-5
1415 - claude-opus-4-8
1516 - claude-opus-4-7
from line 41
4041 -H "anthropic-beta: task-budgets-2026-03-13" \
4142 -H "content-type: application/json" \
4243 -d '{
43 "model": "claude-opus-5",
44 "model": "claude-opus-5-5",
4445 "max_tokens": 128000,
4546 "stream": true,
4647 "messages": [{
from line 58
5758 ```bash CLI
5859 ant beta:messages create --beta task-budgets-2026-03-13 \
5960 --stream --format jsonl <<'YAML' | jq 'select(.type == "message_delta").usage'
60 model: claude-opus-5
61 model: claude-opus-5-5
6162 max_tokens: 128000
6263 messages:
6364 - role: user
from line 75
7475 client = anthropic.Anthropic()
7576 
7677 with client.beta.messages.stream(
77 model="claude-opus-5",
78 model="claude-opus-5-5",
7879 max_tokens=128000,
7980 output_config={
8081 "effort": "high",
from line 95
9495 const client = new Anthropic();
9596 
9697 const stream = client.beta.messages.stream({
97 model: "claude-opus-5",
98 model: "claude-opus-5-5",
9899 max_tokens: 128000,
99100 output_config: {
100101 effort: "high",
from line 115
114115 
115116 var responseUpdates = client.Beta.Messages.CreateStreaming(new MessageCreateParams
116117 {
117 Model = Messages::Model.ClaudeOpus5,
118 Model = Messages::Model.ClaudeOpus5_5,
118119 MaxTokens = 128000,
119120 Messages = [new() { Role = Role.User, Content = "Review the codebase and propose a refactor plan." }],
120121 OutputConfig = new BetaOutputConfig
from line 134
133134 client := anthropic.NewClient()
134135 
135136 stream := client.Beta.Messages.NewStreaming(context.TODO(), anthropic.BetaMessageNewParams{
136 Model: anthropic.ModelClaudeOpus5,
137 Model: anthropic.ModelClaudeOpus5_5,
137138 MaxTokens: 128000,
138139 Betas: []anthropic.AnthropicBeta{"task-budgets-2026-03-13"},
139140 Messages: []anthropic.BetaMessageParam{{
from line 169
168169 AnthropicClient client = AnthropicOkHttpClient.fromEnv();
169170 
170171 MessageCreateParams params = MessageCreateParams.builder()
171 .model(Model.CLAUDE_OPUS_5)
172 .model(Model.CLAUDE_OPUS_5_5)
172173 .maxTokens(128000L)
173174 .addUserMessage("Review the codebase and propose a refactor plan.")
174175 .outputConfig(BetaOutputConfig.builder()
from line 195
194195 $client = new Client();
195196 
196197 $stream = $client->beta->messages->createStream(
197 model: 'claude-opus-5',
198 model: 'claude-opus-5-5',
198199 maxTokens: 128000,
199200 messages: [
200201 ['role' => 'user', 'content' => 'Review the codebase and propose a refactor plan.'],
from line 222
221222 client = Anthropic::Client.new
222223 
223224 stream = client.beta.messages.stream(
224 model: "claude-opus-5",
225 model: "claude-opus-5-5",
225226 max_tokens: 128_000,
226227 messages: [
227228 { role: "user", content: "Review the codebase and propose a refactor plan." }
from line 515
514515<CodeGroup>
515516 ```bash CLI
516517 ant messages create --transform 'usage.output_tokens' <<'YAML'
517 model: claude-opus-5
518 model: claude-opus-5-5
518519 max_tokens: 4096
519520 messages:
520521 - role: user
from line 527
526527 client = anthropic.Anthropic()
527528 
528529 response = client.messages.create(
529 model="claude-opus-5",
530 model="claude-opus-5-5",
530531 max_tokens=4096,
531532 messages=[
532533 {"role": "user", "content": "Review the codebase and propose a refactor plan."}
from line 542
541542 const client = new Anthropic();
542543 
543544 const response = await client.messages.create({
544 model: "claude-opus-5",
545 model: "claude-opus-5-5",
545546 max_tokens: 4096,
546547 messages: [{ role: "user", content: "Review the codebase and propose a refactor plan." }]
547548 });
from line 557
556557 
557558 var response = await client.Messages.Create(new MessageCreateParams
558559 {
559 Model = Model.ClaudeOpus5,
560 Model = Model.ClaudeOpus5_5,
560561 MaxTokens = 4096,
561562 Messages = [new() { Role = Role.User, Content = "Review the codebase and propose a refactor plan." }],
562563 });
from line 570
569570 client := anthropic.NewClient()
570571 
571572 response, err := client.Messages.New(context.TODO(), anthropic.MessageNewParams{
572 Model: anthropic.ModelClaudeOpus5,
573 Model: anthropic.ModelClaudeOpus5_5,
573574 MaxTokens: 4096,
574575 Messages: []anthropic.MessageParam{
575576 anthropic.NewUserMessage(anthropic.NewTextBlock("Review the codebase and propose a refactor plan.")),
from line 588
587588 AnthropicClient client = AnthropicOkHttpClient.fromEnv();
588589 
589590 MessageCreateParams params = MessageCreateParams.builder()
590 .model(Model.CLAUDE_OPUS_5)
591 .model(Model.CLAUDE_OPUS_5_5)
591592 .maxTokens(4096L)
592593 .addUserMessage("Review the codebase and propose a refactor plan.")
593594 .build();
from line 602
601602 $client = new Client();
602603 
603604 $response = $client->messages->create(
604 model: 'claude-opus-5',
605 model: 'claude-opus-5-5',
605606 maxTokens: 4096,
606607 messages: [
607608 ['role' => 'user', 'content' => 'Review the codebase and propose a refactor plan.'],
from line 617
616617 client = Anthropic::Client.new
617618 
618619 response = client.messages.create(
619 model: "claude-opus-5",
620 model: "claude-opus-5-5",
620621 max_tokens: 4096,
621622 messages: [
622623 { role: "user", content: "Review the codebase and propose a refactor plan." }
from line 646
645646| ----------------- | ------------------------------------------- |
646647| Claude Fable 5.1 | Beta (set `task-budgets-2026-03-13` header) |
647648| Claude Mythos 5.1 | Beta (set `task-budgets-2026-03-13` header) |
649| Claude Opus 5.5 | Beta (set `task-budgets-2026-03-13` header) |
648650| Claude Opus 5 | Beta (set `task-budgets-2026-03-13` header) |
649651| Claude Fable 5 | Beta (set `task-budgets-2026-03-13` header) |
650652| Claude Mythos 5 | Beta (set `task-budgets-2026-03-13` header) |