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Add OpenAI's GPT-5.5 model #966

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1 change: 1 addition & 0 deletions src/_locales/de/main.json
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Expand Up @@ -199,5 +199,6 @@
"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",
"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",
"OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",
"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
}
1 change: 1 addition & 0 deletions src/_locales/en/main.json
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"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",
"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",
"OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",
"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
}
1 change: 1 addition & 0 deletions src/_locales/es/main.json
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"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",
"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",
"OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",
"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
}
1 change: 1 addition & 0 deletions src/_locales/fr/main.json
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"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",
"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",
"OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",
"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
}
1 change: 1 addition & 0 deletions src/_locales/in/main.json
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"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",
"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",
"OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",
"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
}
1 change: 1 addition & 0 deletions src/_locales/it/main.json
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"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",
"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",
"OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",
"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
}
1 change: 1 addition & 0 deletions src/_locales/ja/main.json
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"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",
"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",
"OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",
"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
}
1 change: 1 addition & 0 deletions src/_locales/ko/main.json
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"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",
"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",
"OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",
"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
}
1 change: 1 addition & 0 deletions src/_locales/pt/main.json
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"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",
"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",
"OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",
"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
}
1 change: 1 addition & 0 deletions src/_locales/ru/main.json
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"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",
"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",
"OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",
"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
}
1 change: 1 addition & 0 deletions src/_locales/tr/main.json
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"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",
"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",
"OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",
"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
}
1 change: 1 addition & 0 deletions src/_locales/zh-hans/main.json
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"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",
"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",
"OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",
"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
}
1 change: 1 addition & 0 deletions src/_locales/zh-hant/main.json
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"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",
"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",
"OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",
"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
}
2 changes: 2 additions & 0 deletions src/config/index.mjs
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Expand Up @@ -60,6 +60,7 @@ export const chatgptApiModelKeys = [
'chatgptApi5_4',
'chatgptApi5_4Mini',
'chatgptApi5_4Nano',
'chatgptApi5_5',
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@gemini-code-assist gemini-code-assist Bot May 1, 2026

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medium

The addition of chatgptApi5_5 is consistent with the existing 5.x model group. However, following the established pattern for major/minor releases (like 5.0, 5.1, 5.2, and 5.3), a corresponding chatgptApi5_5Latest entry is missing. If OpenAI provides a -chat-latest alias for this version, it should be included here and in the Models object.

'chatgptApi4oMini',
'chatgptApi4_8k',
'chatgptApi4_8k_0613',
Expand Down Expand Up @@ -264,6 +265,7 @@ export const Models = {
chatgptApi5_4: { value: 'gpt-5.4', desc: 'OpenAI (GPT-5.4)' },
chatgptApi5_4Mini: { value: 'gpt-5.4-mini', desc: 'OpenAI (GPT-5.4 mini)' },
chatgptApi5_4Nano: { value: 'gpt-5.4-nano', desc: 'OpenAI (GPT-5.4 nano)' },
chatgptApi5_5: { value: 'gpt-5.5', desc: 'OpenAI (GPT-5.5)' },

chatgptApi4_1: { value: 'gpt-4.1', desc: 'OpenAI (GPT-4.1)' },
chatgptApi4_1_mini: { value: 'gpt-4.1-mini', desc: 'OpenAI (GPT-4.1 mini)' },
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1 change: 1 addition & 0 deletions tests/unit/config/config-predicates.test.mjs
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Expand Up @@ -36,6 +36,7 @@ const representativeChatgptApiModelNames = [
'chatgptApi5_4',
'chatgptApi5_4Mini',
'chatgptApi5_4Nano',
'chatgptApi5_5',
]
const representativeGptCompletionApiModelNames = ['gptApiInstruct']
const representativeClaudeApiModelNames = ['claude37SonnetApi', 'claudeOpus4Api']
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1 change: 1 addition & 0 deletions tests/unit/services/apis/openai-token-params.test.mjs
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Expand Up @@ -24,6 +24,7 @@ test('uses max_completion_tokens for recent gpt-5.x model names', () => {
'gpt-5.3-chat-latest',
'gpt-5.4-mini',
'gpt-5.4-nano',
'gpt-5.5',
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@gemini-code-assist gemini-code-assist Bot May 1, 2026

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medium

The addition of gpt-5.5 to the test suite is correct. However, I noticed that gpt-5.4 is missing from this list of models that should use max_completion_tokens, even though it is defined in the configuration. While not strictly part of this PR's objective, adding it would improve test coverage for the 5.x series.

    'gpt-5.4',
    'gpt-5.4-mini',
    'gpt-5.4-nano',
    'gpt-5.5',

]

for (const model of models) {
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1 change: 1 addition & 0 deletions tests/unit/utils/model-name-convert.test.mjs
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Expand Up @@ -125,6 +125,7 @@ test('modelNameToDesc returns desc for GPT-5 stable presets', () => {
assert.equal(modelNameToDesc('chatgptApi5_4'), 'OpenAI (GPT-5.4)')
assert.equal(modelNameToDesc('chatgptApi5_4Mini'), 'OpenAI (GPT-5.4 mini)')
assert.equal(modelNameToDesc('chatgptApi5_4Nano'), 'OpenAI (GPT-5.4 nano)')
assert.equal(modelNameToDesc('chatgptApi5_5'), 'OpenAI (GPT-5.5)')
})

test('modelNameToDesc appends extraCustomModelName for customModel', () => {
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