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Add Anthropic Claude Opus 5 API support #1026

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Merged
PeterDaveHello merged 1 commit into from
Jul 26, 2026
Merged

Add Anthropic Claude Opus 5 API support #1026

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1 change: 1 addition & 0 deletions src/_locales/en/main.json
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Original file line number Diff line number Diff line change
Expand Up @@ -195,6 +195,7 @@
"Anthropic (Claude Opus 4.5)": "Anthropic (Claude Opus 4.5)",
"Anthropic (Claude Opus 4.6)": "Anthropic (Claude Opus 4.6)",
"Anthropic (Claude Opus 4.8)": "Anthropic (Claude Opus 4.8)",
"Anthropic (Claude Opus 5)": "Anthropic (Claude Opus 5)",

@chatgpt-codex-connector chatgpt-codex-connector Bot Jul 25, 2026

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P1 Badge Propagate the new model label to every locale

When any of the 12 non-English locales is active, this new key is absent from that locale's catalog and only renders through the English fallback. Add the label to each existing locale as required for newly introduced English strings.

AGENTS.md reference: AGENTS.md:L209-L215

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@PeterDaveHello PeterDaveHello Jul 26, 2026

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No change needed. Commit 1c976a3 intentionally removed redundant model labels from non-English locales because i18next falls back to English. Only labels with actual localization differences are kept, so the English entry is sufficient here.

"Anthropic (Claude Sonnet 4)": "Anthropic (Claude Sonnet 4)",
"Anthropic (Claude Sonnet 4.5)": "Anthropic (Claude Sonnet 4.5)",
"Anthropic (Claude Haiku 4.5)": "Anthropic (Claude Haiku 4.5)",
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7 changes: 6 additions & 1 deletion src/config/index.mjs
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Expand Up @@ -91,6 +91,7 @@ export const claudeApiModelKeys = [
'claudeOpus46Api',
'claudeOpus47Api',
'claudeOpus48Api',
'claudeOpus5Api',
'claudeSonnet45Api',
'claudeSonnet46Api',
'claudeSonnet5Api',
Expand Down Expand Up @@ -364,6 +365,10 @@ export const Models = {
value: 'claude-opus-4-8',
desc: 'Anthropic (Claude Opus 4.8)',
},
claudeOpus5Api: {
value: 'claude-opus-5',
desc: 'Anthropic (Claude Opus 5)',
},
claudeSonnet45Api: {
value: 'claude-sonnet-4-5-20250929',
desc: 'Anthropic (Claude Sonnet 4.5)',
Expand Down Expand Up @@ -750,7 +755,7 @@ export const defaultApiModeIds = [
'chatgptApi5_6Terra',
'chatgptApi5_6Luna',
'xaiGrok4_5',
'claudeOpus48Api',
'claudeOpus5Api',
'claudeSonnet5Api',
'claudeHaiku45Api',
'googleGemini3_1Pro',
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7 changes: 6 additions & 1 deletion src/services/apis/claude-api.mjs
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Expand Up @@ -6,7 +6,12 @@ import { getConversationPairs } from '../../utils/get-conversation-pairs.mjs'
import { getModelValue } from '../../utils/model-name-convert.mjs'

function shouldOmitTemperature(model) {
return model === 'claude-opus-4-7' || model === 'claude-opus-4-8' || model === 'claude-sonnet-5'
return (
model === 'claude-opus-4-7' ||
model === 'claude-opus-4-8' ||
model === 'claude-sonnet-5' ||
model === 'claude-opus-5'

@chatgpt-codex-connector chatgpt-codex-connector Bot Jul 26, 2026

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P2 Badge Report Opus 5 token-budget exhaustion

When Opus 5's always-on adaptive thinking consumes max_tokens before emitting text—particularly with the default 2,000-token limit—the API reports stop_reason: "max_tokens" in a message_delta and then sends message_stop. The current handler ignores that stop reason, records an empty answer, and reports successful completion, leaving the user with no explanation or useful retry path. The current tree no longer contains the token-limit handling referenced by the earlier localization review comment, so this remains a runtime issue for the newly exposed model.

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@PeterDaveHello PeterDaveHello Jul 26, 2026

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This is valid, but the handling is not specific to Opus 5. It affects Claude streaming responses generally and requires broader stop-reason and error-propagation coverage. It will be addressed in a focused follow-up change rather than expanding this model-registration PR.

)
}

function shouldDisableDefaultThinking(model) {
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1 change: 1 addition & 0 deletions tests/unit/services/apis/claude-api.test.mjs
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Expand Up @@ -125,6 +125,7 @@ test('claude-api: omits temperature for models that reject custom sampling', asy
for (const [modelName, model] of [
['claudeOpus47Api', 'claude-opus-4-7'],
['claudeOpus48Api', 'claude-opus-4-8'],
['claudeOpus5Api', 'claude-opus-5'],
['claudeSonnet5Api', 'claude-sonnet-5'],
]) {
await t.test(modelName, async (t) => {
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